---
_id: '11686'
abstract:
- lang: eng
text: Maternally inherited Wolbachia transinfections are being introduced into natural
mosquito populations to reduce the transmission of dengue, Zika and other arboviruses.
Wolbachia-induced cytoplasmic incompatibility provides a frequency-dependent reproductive
advantage to infected females that can spread transinfections within and among
populations. However, because transinfections generally reduce host fitness, they
tend to spread within populations only after their frequency exceeds a critical
threshold. This produces bistability with stable equilibrium frequencies at both
0 and 1, analogous to the bistability produced by underdominance between alleles
or karyotypes and by population dynamics under Allee effects. Here, we analyze
how stochastic frequency variation produced by finite population size can facilitate
the local spread of variants with bistable dynamics into areas where invasion
is unexpected from deterministic models. Our exemplar is the establishment of
wMel Wolbachia in the Aedes aegypti population of Pyramid Estates (PE), a small
community in far north Queensland, Australia. In 2011, wMel was stably introduced
into Gordonvale, separated from PE by barriers to Ae. aegypti dispersal. After
nearly six years during which wMel was observed only at low frequencies in PE,
corresponding to an apparent equilibrium between immigration and selection, wMel
rose to fixation by 2018. Using analytic approximations and statistical analyses,
we demonstrate that the observed fixation of wMel at PE is consistent with both
stochastic transition past an unstable threshold frequency and deterministic transformation
produced by steady immigration at a rate just above the threshold required for
deterministic invasion. The indeterminacy results from a delicate balance of parameters
needed to produce the delayed transition observed. Our analyses suggest that once
Wolbachia transinfections are established locally through systematic introductions,
stochastic “threshold crossing” is likely to only minimally enhance spatial spread,
providing a local ratchet that slightly – but systematically – aids area-wide
transformation of disease-vector populations in heterogeneous landscapes.
acknowledgement: 'Bill and Melinda Gates Foundation, Award: OPP1180815'
article_processing_charge: No
author:
- first_name: Michael
full_name: Turelli, Michael
last_name: Turelli
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Turelli M, Barton NH. Wolbachia frequency data from: Why did the Wolbachia
transinfection cross the road? Drift, deterministic dynamics and disease control.
2022. doi:10.25338/B81931'
apa: 'Turelli, M., & Barton, N. H. (2022). Wolbachia frequency data from: Why
did the Wolbachia transinfection cross the road? Drift, deterministic dynamics
and disease control. Dryad. https://doi.org/10.25338/B81931'
chicago: 'Turelli, Michael, and Nicholas H Barton. “Wolbachia Frequency Data from:
Why Did the Wolbachia Transinfection Cross the Road? Drift, Deterministic Dynamics
and Disease Control.” Dryad, 2022. https://doi.org/10.25338/B81931.'
ieee: 'M. Turelli and N. H. Barton, “Wolbachia frequency data from: Why did the
Wolbachia transinfection cross the road? Drift, deterministic dynamics and disease
control.” Dryad, 2022.'
ista: 'Turelli M, Barton NH. 2022. Wolbachia frequency data from: Why did the Wolbachia
transinfection cross the road? Drift, deterministic dynamics and disease control,
Dryad, 10.25338/B81931.'
mla: 'Turelli, Michael, and Nicholas H. Barton. Wolbachia Frequency Data from:
Why Did the Wolbachia Transinfection Cross the Road? Drift, Deterministic Dynamics
and Disease Control. Dryad, 2022, doi:10.25338/B81931.'
short: M. Turelli, N.H. Barton, (2022).
date_created: 2022-07-29T06:45:41Z
date_published: 2022-01-06T00:00:00Z
date_updated: 2023-08-02T13:50:08Z
day: '06'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.25338/B81931
keyword:
- Biological sciences
main_file_link:
- open_access: '1'
url: https://doi.org/10.25338/B81931
month: '01'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '10604'
relation: used_in_publication
status: public
status: public
title: 'Wolbachia frequency data from: Why did the Wolbachia transinfection cross
the road? Drift, deterministic dynamics and disease control'
tmp:
image: /images/cc_0.png
legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
name: Creative Commons Public Domain Dedication (CC0 1.0)
short: CC0 (1.0)
type: research_data_reference
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
year: '2022'
...
---
_id: '10736'
abstract:
- lang: eng
text: Predicting function from sequence is a central problem of biology. Currently,
this is possible only locally in a narrow mutational neighborhood around a wildtype
sequence rather than globally from any sequence. Using random mutant libraries,
we developed a biophysical model that accounts for multiple features of σ70 binding
bacterial promoters to predict constitutive gene expression levels from any sequence.
We experimentally and theoretically estimated that 10–20% of random sequences
lead to expression and ~80% of non-expressing sequences are one mutation away
from a functional promoter. The potential for generating expression from random
sequences is so pervasive that selection acts against σ70-RNA polymerase binding
sites even within inter-genic, promoter-containing regions. This pervasiveness
of σ70-binding sites implies that emergence of promoters is not the limiting step
in gene regulatory evolution. Ultimately, the inclusion of novel features of promoter
function into a mechanistic model enabled not only more accurate predictions of
gene expression levels, but also identified that promoters evolve more rapidly
than previously thought.
acknowledgement: 'We thank Hande Acar, Nicholas H Barton, Rok Grah, Tiago Paixao,
Maros Pleska, Anna Staron, and Murat Tugrul for insightful comments and input on
the manuscript. This work was supported by: Sir Henry Dale Fellowship jointly funded
by the Wellcome Trust and the Royal Society (grant number 216779/Z/19/Z) to ML;
IPC Grant from IST Austria to ML and SS; European Research Council Funding Programme
7 (2007–2013, grant agreement number 648440) to JPB.'
article_number: e64543
article_processing_charge: No
article_type: original
author:
- first_name: Mato
full_name: Lagator, Mato
id: 345D25EC-F248-11E8-B48F-1D18A9856A87
last_name: Lagator
- first_name: Srdjan
full_name: Sarikas, Srdjan
id: 35F0286E-F248-11E8-B48F-1D18A9856A87
last_name: Sarikas
- first_name: Magdalena
full_name: Steinrueck, Magdalena
last_name: Steinrueck
- first_name: David
full_name: Toledo-Aparicio, David
last_name: Toledo-Aparicio
- first_name: Jonathan P
full_name: Bollback, Jonathan P
id: 2C6FA9CC-F248-11E8-B48F-1D18A9856A87
last_name: Bollback
orcid: 0000-0002-4624-4612
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
- first_name: Gašper
full_name: Tkačik, Gašper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkačik
orcid: 0000-0002-6699-1455
citation:
ama: Lagator M, Sarikas S, Steinrueck M, et al. Predicting bacterial promoter function
and evolution from random sequences. eLife. 2022;11. doi:10.7554/eLife.64543
apa: Lagator, M., Sarikas, S., Steinrueck, M., Toledo-Aparicio, D., Bollback, J.
P., Guet, C. C., & Tkačik, G. (2022). Predicting bacterial promoter function
and evolution from random sequences. ELife. eLife Sciences Publications.
https://doi.org/10.7554/eLife.64543
chicago: Lagator, Mato, Srdjan Sarikas, Magdalena Steinrueck, David Toledo-Aparicio,
Jonathan P Bollback, Calin C Guet, and Gašper Tkačik. “Predicting Bacterial Promoter
Function and Evolution from Random Sequences.” ELife. eLife Sciences Publications,
2022. https://doi.org/10.7554/eLife.64543.
ieee: M. Lagator et al., “Predicting bacterial promoter function and evolution
from random sequences,” eLife, vol. 11. eLife Sciences Publications, 2022.
ista: Lagator M, Sarikas S, Steinrueck M, Toledo-Aparicio D, Bollback JP, Guet CC,
Tkačik G. 2022. Predicting bacterial promoter function and evolution from random
sequences. eLife. 11, e64543.
mla: Lagator, Mato, et al. “Predicting Bacterial Promoter Function and Evolution
from Random Sequences.” ELife, vol. 11, e64543, eLife Sciences Publications,
2022, doi:10.7554/eLife.64543.
short: M. Lagator, S. Sarikas, M. Steinrueck, D. Toledo-Aparicio, J.P. Bollback,
C.C. Guet, G. Tkačik, ELife 11 (2022).
date_created: 2022-02-06T23:01:32Z
date_published: 2022-01-26T00:00:00Z
date_updated: 2023-08-02T14:09:02Z
day: '26'
ddc:
- '576'
department:
- _id: CaGu
- _id: GaTk
- _id: NiBa
doi: 10.7554/eLife.64543
ec_funded: 1
external_id:
isi:
- '000751104400001'
pmid:
- '35080492'
file:
- access_level: open_access
checksum: decdcdf600ff51e9a9703b49ca114170
content_type: application/pdf
creator: cchlebak
date_created: 2022-02-07T07:14:09Z
date_updated: 2022-02-07T07:14:09Z
file_id: '10739'
file_name: 2022_ELife_Lagator.pdf
file_size: 5604343
relation: main_file
success: 1
file_date_updated: 2022-02-07T07:14:09Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2578D616-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '648440'
name: Selective Barriers to Horizontal Gene Transfer
publication: eLife
publication_identifier:
eissn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Predicting bacterial promoter function and evolution from random sequences
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2022'
...
---
_id: '11334'
abstract:
- lang: eng
text: Hybridization is a common evolutionary process with multiple possible outcomes.
In vertebrates, interspecific hybridization has repeatedly generated parthenogenetic
hybrid species. However, it is unknown whether the generation of parthenogenetic
hybrids is a rare outcome of frequent hybridization between sexual species within
a genus or the typical outcome of rare hybridization events. Darevskia is a genus
of rock lizards with both hybrid parthenogenetic and sexual species. Using capture
sequencing, we estimate phylogenetic relationships and gene flow among the sexual
species, to determine how introgressive hybridization relates to the origins of
parthenogenetic hybrids. We find evidence for widespread hybridization with gene
flow, both between recently diverged species and deep branches. Surprisingly,
we find no signal of gene flow between parental species of the parthenogenetic
hybrids, suggesting that the parental pairs were either reproductively or geographically
isolated early in their divergence. The generation of parthenogenetic hybrids
in Darevskia is, then, a rare outcome of the total occurrence of hybridization
within the genus, but the typical outcome when specific species pairs hybridize.
Our results question the conventional view that parthenogenetic lineages are generated
by hybridization in a window of divergence. Instead, they suggest that some lineages
possess specific properties that underpin successful parthenogenetic reproduction.
acknowledgement: "The authors thank A. van der Meijden and F. Ahmadzadeh for providing
specimens and tissue samples, and A. Vardanyan, C. Corti, F. Jorge, and S. Drovetski
for support during field work. The authors also thank S. Qiu for assistance with
python scripting, S. Rocha for her support in BEAST analysis, and B. Wielstra for
his comments on\r\na previous version of the manuscript. SF was funded by FCT grant
SFRH/BD/81483/2011 (a PhD individual grant). AMW was funded by the European Union’s
Horizon 2020 research and innovation programme under Marie Skłodowska-Curie grant
agreement no. 797747. TS acknowledges funding from the Swiss National Science Foundation
(grants\r\nPP00P3_170627 and 31003A_182495). The work was carried out under financial
support of the projects “Preserving Armenian biodiversity: Joint Portuguese – Armenian
program for training in modern conservation biology” of Gulbenkian Foundation (Portugal)
and PTDC/BIABEC/101256/2008 of Fundação para a Ciência e a Tecnologia (FCT, Portugal)."
article_processing_charge: No
article_type: original
author:
- first_name: Susana
full_name: Freitas, Susana
last_name: Freitas
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Tanja
full_name: Schwander, Tanja
last_name: Schwander
- first_name: Marine
full_name: Arakelyan, Marine
last_name: Arakelyan
- first_name: Çetin
full_name: Ilgaz, Çetin
last_name: Ilgaz
- first_name: Yusuf
full_name: Kumlutas, Yusuf
last_name: Kumlutas
- first_name: David James
full_name: Harris, David James
last_name: Harris
- first_name: Miguel A.
full_name: Carretero, Miguel A.
last_name: Carretero
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
citation:
ama: 'Freitas S, Westram AM, Schwander T, et al. Parthenogenesis in Darevskia lizards:
A rare outcome of common hybridization, not a common outcome of rare hybridization.
Evolution. 2022;76(5):899-914. doi:10.1111/evo.14462'
apa: 'Freitas, S., Westram, A. M., Schwander, T., Arakelyan, M., Ilgaz, Ç., Kumlutas,
Y., … Butlin, R. K. (2022). Parthenogenesis in Darevskia lizards: A rare outcome
of common hybridization, not a common outcome of rare hybridization. Evolution.
Wiley. https://doi.org/10.1111/evo.14462'
chicago: 'Freitas, Susana, Anja M Westram, Tanja Schwander, Marine Arakelyan, Çetin
Ilgaz, Yusuf Kumlutas, David James Harris, Miguel A. Carretero, and Roger K. Butlin.
“Parthenogenesis in Darevskia Lizards: A Rare Outcome of Common Hybridization,
Not a Common Outcome of Rare Hybridization.” Evolution. Wiley, 2022. https://doi.org/10.1111/evo.14462.'
ieee: 'S. Freitas et al., “Parthenogenesis in Darevskia lizards: A rare outcome
of common hybridization, not a common outcome of rare hybridization,” Evolution,
vol. 76, no. 5. Wiley, pp. 899–914, 2022.'
ista: 'Freitas S, Westram AM, Schwander T, Arakelyan M, Ilgaz Ç, Kumlutas Y, Harris
DJ, Carretero MA, Butlin RK. 2022. Parthenogenesis in Darevskia lizards: A rare
outcome of common hybridization, not a common outcome of rare hybridization. Evolution.
76(5), 899–914.'
mla: 'Freitas, Susana, et al. “Parthenogenesis in Darevskia Lizards: A Rare Outcome
of Common Hybridization, Not a Common Outcome of Rare Hybridization.” Evolution,
vol. 76, no. 5, Wiley, 2022, pp. 899–914, doi:10.1111/evo.14462.'
short: S. Freitas, A.M. Westram, T. Schwander, M. Arakelyan, Ç. Ilgaz, Y. Kumlutas,
D.J. Harris, M.A. Carretero, R.K. Butlin, Evolution 76 (2022) 899–914.
date_created: 2022-04-24T22:01:44Z
date_published: 2022-05-01T00:00:00Z
date_updated: 2023-08-03T07:00:28Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
- _id: BeVi
doi: 10.1111/evo.14462
ec_funded: 1
external_id:
isi:
- '000781632500001'
pmid:
- '35323995'
file:
- access_level: open_access
checksum: c27c025ae9afcf6c804d46a909775ee5
content_type: application/pdf
creator: dernst
date_created: 2022-08-05T06:19:28Z
date_updated: 2022-08-05T06:19:28Z
file_id: '11729'
file_name: 2022_Evolution_Freitas.pdf
file_size: 2855214
relation: main_file
success: 1
file_date_updated: 2022-08-05T06:19:28Z
has_accepted_license: '1'
intvolume: ' 76'
isi: 1
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
month: '05'
oa: 1
oa_version: Published Version
page: 899-914
pmid: 1
project:
- _id: 265B41B8-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '797747'
name: Theoretical and empirical approaches to understanding Parallel Adaptation
publication: Evolution
publication_identifier:
eissn:
- 1558-5646
issn:
- 0014-3820
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Parthenogenesis in Darevskia lizards: A rare outcome of common hybridization,
not a common outcome of rare hybridization'
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
short: CC BY-NC (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 76
year: '2022'
...
---
_id: '11447'
abstract:
- lang: eng
text: Empirical essays of fitness landscapes suggest that they may be rugged, that
is having multiple fitness peaks. Such fitness landscapes, those that have multiple
peaks, necessarily have special local structures, called reciprocal sign epistasis
(Poelwijk et al. in J Theor Biol 272:141–144, 2011). Here, we investigate the
quantitative relationship between the number of fitness peaks and the number of
reciprocal sign epistatic interactions. Previously, it has been shown (Poelwijk
et al. in J Theor Biol 272:141–144, 2011) that pairwise reciprocal sign epistasis
is a necessary but not sufficient condition for the existence of multiple peaks.
Applying discrete Morse theory, which to our knowledge has never been used in
this context, we extend this result by giving the minimal number of reciprocal
sign epistatic interactions required to create a given number of peaks.
acknowledgement: We are grateful to Herbert Edelsbrunner and Jeferson Zapata for helpful
discussions. Open access funding provided by Austrian Science Fund (FWF). Partially
supported by the ERC Consolidator (771209–CharFL) and the FWF Austrian Science Fund
(I5127-B) grants to FAK.
article_number: '74'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Raimundo J
full_name: Saona Urmeneta, Raimundo J
id: BD1DF4C4-D767-11E9-B658-BC13E6697425
last_name: Saona Urmeneta
orcid: 0000-0001-5103-038X
- first_name: Fyodor
full_name: Kondrashov, Fyodor
id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
last_name: Kondrashov
orcid: 0000-0001-8243-4694
- first_name: Kseniia
full_name: Khudiakova, Kseniia
id: 4E6DC800-AE37-11E9-AC72-31CAE5697425
last_name: Khudiakova
orcid: 0000-0002-6246-1465
citation:
ama: Saona Urmeneta RJ, Kondrashov F, Khudiakova K. Relation between the number
of peaks and the number of reciprocal sign epistatic interactions. Bulletin
of Mathematical Biology. 2022;84(8). doi:10.1007/s11538-022-01029-z
apa: Saona Urmeneta, R. J., Kondrashov, F., & Khudiakova, K. (2022). Relation
between the number of peaks and the number of reciprocal sign epistatic interactions.
Bulletin of Mathematical Biology. Springer Nature. https://doi.org/10.1007/s11538-022-01029-z
chicago: Saona Urmeneta, Raimundo J, Fyodor Kondrashov, and Kseniia Khudiakova.
“Relation between the Number of Peaks and the Number of Reciprocal Sign Epistatic
Interactions.” Bulletin of Mathematical Biology. Springer Nature, 2022.
https://doi.org/10.1007/s11538-022-01029-z.
ieee: R. J. Saona Urmeneta, F. Kondrashov, and K. Khudiakova, “Relation between
the number of peaks and the number of reciprocal sign epistatic interactions,”
Bulletin of Mathematical Biology, vol. 84, no. 8. Springer Nature, 2022.
ista: Saona Urmeneta RJ, Kondrashov F, Khudiakova K. 2022. Relation between the
number of peaks and the number of reciprocal sign epistatic interactions. Bulletin
of Mathematical Biology. 84(8), 74.
mla: Saona Urmeneta, Raimundo J., et al. “Relation between the Number of Peaks and
the Number of Reciprocal Sign Epistatic Interactions.” Bulletin of Mathematical
Biology, vol. 84, no. 8, 74, Springer Nature, 2022, doi:10.1007/s11538-022-01029-z.
short: R.J. Saona Urmeneta, F. Kondrashov, K. Khudiakova, Bulletin of Mathematical
Biology 84 (2022).
date_created: 2022-06-17T16:16:15Z
date_published: 2022-06-17T00:00:00Z
date_updated: 2023-08-03T07:20:53Z
day: '17'
ddc:
- '510'
- '570'
department:
- _id: GradSch
- _id: NiBa
- _id: JaMa
doi: 10.1007/s11538-022-01029-z
ec_funded: 1
external_id:
isi:
- '000812509800001'
file:
- access_level: open_access
checksum: 05a1fe7d10914a00c2bca9b447993a65
content_type: application/pdf
creator: dernst
date_created: 2022-06-20T07:51:32Z
date_updated: 2022-06-20T07:51:32Z
file_id: '11455'
file_name: 2022_BulletinMathBiology_Saona.pdf
file_size: 463025
relation: main_file
success: 1
file_date_updated: 2022-06-20T07:51:32Z
has_accepted_license: '1'
intvolume: ' 84'
isi: 1
issue: '8'
keyword:
- Computational Theory and Mathematics
- General Agricultural and Biological Sciences
- Pharmacology
- General Environmental Science
- General Biochemistry
- Genetics and Molecular Biology
- General Mathematics
- Immunology
- General Neuroscience
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 26580278-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '771209'
name: Characterizing the fitness landscape on population and global scales
- _id: c098eddd-5a5b-11eb-8a69-abe27170a68f
grant_number: I05127
name: Evolutionary analysis of gene regulation
publication: Bulletin of Mathematical Biology
publication_identifier:
eissn:
- 1522-9602
issn:
- 0092-8240
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1007/s11538-022-01118-z
scopus_import: '1'
status: public
title: Relation between the number of peaks and the number of reciprocal sign epistatic
interactions
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 84
year: '2022'
...
---
_id: '11546'
abstract:
- lang: eng
text: Local adaptation leads to differences between populations within a species.
In many systems, similar environmental contrasts occur repeatedly, sometimes driving
parallel phenotypic evolution. Understanding the genomic basis of local adaptation
and parallel evolution is a major goal of evolutionary genomics. It is now known
that by preventing the break-up of favourable combinations of alleles across multiple
loci, genetic architectures that reduce recombination, like chromosomal inversions,
can make an important contribution to local adaptation. However, little is known
about whether inversions also contribute disproportionately to parallel evolution.
Our aim here is to highlight this knowledge gap, to showcase existing studies,
and to illustrate the differences between genomic architectures with and without
inversions using simple models. We predict that by generating stronger effective
selection, inversions can sometimes speed up the parallel adaptive process or
enable parallel adaptation where it would be impossible otherwise, but this is
highly dependent on the spatial setting. We highlight that further empirical work
is needed, in particular to cover a broader taxonomic range and to understand
the relative importance of inversions compared to genomic regions without inversions.
acknowledgement: We thank the editor and two anonymous reviewers for their helpful
and interesting comments on this manuscript.
article_number: '20210203'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Roger
full_name: Butlin, Roger
last_name: Butlin
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Westram AM, Faria R, Johannesson K, Butlin R, Barton NH. Inversions and parallel
evolution. Philosophical Transactions of the Royal Society B: Biological Sciences.
2022;377(1856). doi:10.1098/rstb.2021.0203'
apa: 'Westram, A. M., Faria, R., Johannesson, K., Butlin, R., & Barton, N. H.
(2022). Inversions and parallel evolution. Philosophical Transactions of the
Royal Society B: Biological Sciences. Royal Society of London. https://doi.org/10.1098/rstb.2021.0203'
chicago: 'Westram, Anja M, Rui Faria, Kerstin Johannesson, Roger Butlin, and Nicholas
H Barton. “Inversions and Parallel Evolution.” Philosophical Transactions of
the Royal Society B: Biological Sciences. Royal Society of London, 2022. https://doi.org/10.1098/rstb.2021.0203.'
ieee: 'A. M. Westram, R. Faria, K. Johannesson, R. Butlin, and N. H. Barton, “Inversions
and parallel evolution,” Philosophical Transactions of the Royal Society B:
Biological Sciences, vol. 377, no. 1856. Royal Society of London, 2022.'
ista: 'Westram AM, Faria R, Johannesson K, Butlin R, Barton NH. 2022. Inversions
and parallel evolution. Philosophical Transactions of the Royal Society B: Biological
Sciences. 377(1856), 20210203.'
mla: 'Westram, Anja M., et al. “Inversions and Parallel Evolution.” Philosophical
Transactions of the Royal Society B: Biological Sciences, vol. 377, no. 1856,
20210203, Royal Society of London, 2022, doi:10.1098/rstb.2021.0203.'
short: 'A.M. Westram, R. Faria, K. Johannesson, R. Butlin, N.H. Barton, Philosophical
Transactions of the Royal Society B: Biological Sciences 377 (2022).'
date_created: 2022-07-08T11:41:56Z
date_published: 2022-08-01T00:00:00Z
date_updated: 2023-08-03T11:55:42Z
day: '01'
ddc:
- '570'
department:
- _id: BeVi
- _id: NiBa
doi: 10.1098/rstb.2021.0203
external_id:
isi:
- '000812317300005'
file:
- access_level: open_access
checksum: 49f69428f3dcf5ce3ff281f7d199e9df
content_type: application/pdf
creator: dernst
date_created: 2023-02-02T08:20:29Z
date_updated: 2023-02-02T08:20:29Z
file_id: '12479'
file_name: 2022_PhilosophicalTransactionsB_Westram.pdf
file_size: 920304
relation: main_file
success: 1
file_date_updated: 2023-02-02T08:20:29Z
has_accepted_license: '1'
intvolume: ' 377'
isi: 1
issue: '1856'
keyword:
- General Agricultural and Biological Sciences
- General Biochemistry
- Genetics and Molecular Biology
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
project:
- _id: 05959E1C-7A3F-11EA-A408-12923DDC885E
grant_number: P32166
name: The maintenance of alternative adaptive peaks in snapdragons
publication: 'Philosophical Transactions of the Royal Society B: Biological Sciences'
publication_identifier:
eissn:
- 1471-2970
issn:
- 0962-8436
publication_status: published
publisher: Royal Society of London
quality_controlled: '1'
scopus_import: '1'
status: public
title: Inversions and parallel evolution
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 377
year: '2022'
...
---
_id: '11640'
abstract:
- lang: eng
text: Spatially explicit population genetic models have long been developed, yet
have rarely been used to test hypotheses about the spatial distribution of genetic
diversity or the genetic divergence between populations. Here, we use spatially
explicit coalescence simulations to explore the properties of the island and the
two-dimensional stepping stone models under a wide range of scenarios with spatio-temporal
variation in deme size. We avoid the simulation of genetic data, using the fact
that under the studied models, summary statistics of genetic diversity and divergence
can be approximated from coalescence times. We perform the simulations using gridCoal,
a flexible spatial wrapper for the software msprime (Kelleher et al., 2016, Theoretical
Population Biology, 95, 13) developed herein. In gridCoal, deme sizes can change
arbitrarily across space and time, as well as migration rates between individual
demes. We identify different factors that can cause a deviation from theoretical
expectations, such as the simulation time in comparison to the effective deme
size and the spatio-temporal autocorrelation across the grid. Our results highlight
that FST, a measure of the strength of population structure, principally depends
on recent demography, which makes it robust to temporal variation in deme size.
In contrast, the amount of genetic diversity is dependent on the distant past
when Ne is large, therefore longer run times are needed to estimate Ne than FST.
Finally, we illustrate the use of gridCoal on a real-world example, the range
expansion of silver fir (Abies alba Mill.) since the last glacial maximum, using
different degrees of spatio-temporal variation in deme size.
acknowledgement: ES was supported by an IST studentship provided by IST Austria. BT
was funded by the European Union's Horizon 2020 research and innovation programme
under the Marie Sklodowska-Curie Independent Fellowship (704172, RACE). This project
received further funding awarded to KC from the Swiss National Science Foundation
(SNSF CRSK-3_190288) and the Swiss Federal Research Institute WSL. We thank Nick
Barton for many invaluable discussions and his comments on the thesis chapter and
this manuscript. We thank Peter Ralph and Jerome Kelleher for useful discussions
and Bisschop Gertjan for comments on this manuscript. We thank Fortunat Joos for
providing us with the raw data from the LPX-Bern model for silver fir, and Willy
Tinner for helpful insights about the demographic history of silver fir. We also
thank the editor Alana Alexander for useful comments and advice on the manuscript.
Open access funding provided by Eidgenossische Technische Hochschule Zurich.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Eniko
full_name: Szep, Eniko
id: 485BB5A4-F248-11E8-B48F-1D18A9856A87
last_name: Szep
- first_name: Barbora
full_name: Trubenova, Barbora
id: 42302D54-F248-11E8-B48F-1D18A9856A87
last_name: Trubenova
orcid: 0000-0002-6873-2967
- first_name: Katalin
full_name: Csilléry, Katalin
last_name: Csilléry
citation:
ama: Szep E, Trubenova B, Csilléry K. Using gridCoal to assess whether standard
population genetic theory holds in the presence of spatio-temporal heterogeneity
in population size. Molecular Ecology Resources. 2022;22(8):2941-2955.
doi:10.1111/1755-0998.13676
apa: Szep, E., Trubenova, B., & Csilléry, K. (2022). Using gridCoal to assess
whether standard population genetic theory holds in the presence of spatio-temporal
heterogeneity in population size. Molecular Ecology Resources. Wiley. https://doi.org/10.1111/1755-0998.13676
chicago: Szep, Eniko, Barbora Trubenova, and Katalin Csilléry. “Using GridCoal to
Assess Whether Standard Population Genetic Theory Holds in the Presence of Spatio-Temporal
Heterogeneity in Population Size.” Molecular Ecology Resources. Wiley,
2022. https://doi.org/10.1111/1755-0998.13676.
ieee: E. Szep, B. Trubenova, and K. Csilléry, “Using gridCoal to assess whether
standard population genetic theory holds in the presence of spatio-temporal heterogeneity
in population size,” Molecular Ecology Resources, vol. 22, no. 8. Wiley,
pp. 2941–2955, 2022.
ista: Szep E, Trubenova B, Csilléry K. 2022. Using gridCoal to assess whether standard
population genetic theory holds in the presence of spatio-temporal heterogeneity
in population size. Molecular Ecology Resources. 22(8), 2941–2955.
mla: Szep, Eniko, et al. “Using GridCoal to Assess Whether Standard Population Genetic
Theory Holds in the Presence of Spatio-Temporal Heterogeneity in Population Size.”
Molecular Ecology Resources, vol. 22, no. 8, Wiley, 2022, pp. 2941–55,
doi:10.1111/1755-0998.13676.
short: E. Szep, B. Trubenova, K. Csilléry, Molecular Ecology Resources 22 (2022)
2941–2955.
date_created: 2022-07-24T22:01:43Z
date_published: 2022-11-01T00:00:00Z
date_updated: 2023-08-03T12:11:01Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/1755-0998.13676
ec_funded: 1
external_id:
isi:
- '000825873600001'
file:
- access_level: open_access
checksum: 3102e203e77b884bffffdbe8e548da88
content_type: application/pdf
creator: dernst
date_created: 2023-02-02T08:11:23Z
date_updated: 2023-02-02T08:11:23Z
file_id: '12477'
file_name: 2022_MolecularEcologyRes_Szep.pdf
file_size: 6431779
relation: main_file
success: 1
file_date_updated: 2023-02-02T08:11:23Z
has_accepted_license: '1'
intvolume: ' 22'
isi: 1
issue: '8'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 2941-2955
project:
- _id: 25AEDD42-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '704172'
name: Rate of Adaptation in Changing Environment
publication: Molecular Ecology Resources
publication_identifier:
eissn:
- 1755-0998
issn:
- 1755-098X
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Using gridCoal to assess whether standard population genetic theory holds in
the presence of spatio-temporal heterogeneity in population size
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
short: CC BY-NC (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 22
year: '2022'
...
---
_id: '12001'
abstract:
- lang: eng
text: 'Sexual antagonism is a common hypothesis for driving the evolution of sex
chromosomes, whereby recombination suppression is favored between sexually antagonistic
loci and the sex-determining locus to maintain beneficial combinations of alleles.
This results in the formation of a sex-determining region. Chromosomal inversions
may contribute to recombination suppression but their precise role in sex chromosome
evolution remains unclear. Because local adaptation is frequently facilitated
through the suppression of recombination between adaptive loci by chromosomal
inversions, there is potential for inversions that cover sex-determining regions
to be involved in local adaptation as well, particularly if habitat variation
creates environment-dependent sexual antagonism. With these processes in mind,
we investigated sex determination in a well-studied example of local adaptation
within a species: the intertidal snail, Littorina saxatilis. Using SNP data from
a Swedish hybrid zone, we find novel evidence for a female-heterogametic sex determination
system that is restricted to one ecotype. Our results suggest that four putative
chromosomal inversions, two previously described and two newly discovered, span
the putative sex chromosome pair. We determine their differing associations with
sex, which suggest distinct strata of differing ages. The same inversions are
found in the second ecotype but do not show any sex association. The striking
disparity in inversion-sex associations between ecotypes that are connected by
gene flow across a habitat transition that is just a few meters wide indicates
a difference in selective regime that has produced a distinct barrier to the spread
of the newly discovered sex-determining region between ecotypes. Such sex chromosome-environment
interactions have not previously been uncovered in L. saxatilis and are known
in few other organisms. A combination of both sex-specific selection and divergent
natural selection is required to explain these highly unusual patterns.'
acknowledgement: We thank A. Wright and four anonymous reviewers for valuable comments
on an earlier draft of this manuscript and all members of the Littorina group for
helpful discussions. This work was supported by a European Research Council grant
to RKB and by a Natural Environment Research Council studentship to KEH through
the ACCE doctoral training program. KJ acknowledges support from the Swedish Science
Research Council VR (Vetenskaprådet) (2017-03798). RF was supported by an FCT CEEC
(Fundação para a Ciênca e a Tecnologia, Concurso Estímulo ao Emprego Científico)
contract (2020.00275.CEECIND).
article_processing_charge: Yes
article_type: original
author:
- first_name: Katherine E.
full_name: Hearn, Katherine E.
last_name: Hearn
- first_name: Eva L.
full_name: Koch, Eva L.
last_name: Koch
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
citation:
ama: Hearn KE, Koch EL, Stankowski S, et al. Differing associations between sex
determination and sex-linked inversions in two ecotypes of Littorina saxatilis.
Evolution Letters. 2022;6(5):358-374. doi:10.1002/evl3.295
apa: Hearn, K. E., Koch, E. L., Stankowski, S., Butlin, R. K., Faria, R., Johannesson,
K., & Westram, A. M. (2022). Differing associations between sex determination
and sex-linked inversions in two ecotypes of Littorina saxatilis. Evolution
Letters. Oxford Academic. https://doi.org/10.1002/evl3.295
chicago: Hearn, Katherine E., Eva L. Koch, Sean Stankowski, Roger K. Butlin, Rui
Faria, Kerstin Johannesson, and Anja M Westram. “Differing Associations between
Sex Determination and Sex-Linked Inversions in Two Ecotypes of Littorina Saxatilis.”
Evolution Letters. Oxford Academic, 2022. https://doi.org/10.1002/evl3.295.
ieee: K. E. Hearn et al., “Differing associations between sex determination
and sex-linked inversions in two ecotypes of Littorina saxatilis,” Evolution
Letters, vol. 6, no. 5. Oxford Academic, pp. 358–374, 2022.
ista: Hearn KE, Koch EL, Stankowski S, Butlin RK, Faria R, Johannesson K, Westram
AM. 2022. Differing associations between sex determination and sex-linked inversions
in two ecotypes of Littorina saxatilis. Evolution Letters. 6(5), 358–374.
mla: Hearn, Katherine E., et al. “Differing Associations between Sex Determination
and Sex-Linked Inversions in Two Ecotypes of Littorina Saxatilis.” Evolution
Letters, vol. 6, no. 5, Oxford Academic, 2022, pp. 358–74, doi:10.1002/evl3.295.
short: K.E. Hearn, E.L. Koch, S. Stankowski, R.K. Butlin, R. Faria, K. Johannesson,
A.M. Westram, Evolution Letters 6 (2022) 358–374.
date_created: 2022-08-28T22:02:02Z
date_published: 2022-10-01T00:00:00Z
date_updated: 2023-08-03T13:18:17Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1002/evl3.295
external_id:
isi:
- '000839621100001'
file:
- access_level: open_access
checksum: 2dcd06186a11b7d1be4cddc6b189f8fb
content_type: application/pdf
creator: dernst
date_created: 2023-02-27T07:17:42Z
date_updated: 2023-02-27T07:17:42Z
file_id: '12686'
file_name: 2022_EvolutionLetters_Hearn.pdf
file_size: 2368965
relation: main_file
success: 1
file_date_updated: 2023-02-27T07:17:42Z
has_accepted_license: '1'
intvolume: ' 6'
isi: 1
issue: '5'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 358-374
publication: Evolution Letters
publication_identifier:
eissn:
- 2056-3744
publication_status: published
publisher: Oxford Academic
quality_controlled: '1'
scopus_import: '1'
status: public
title: Differing associations between sex determination and sex-linked inversions
in two ecotypes of Littorina saxatilis
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 6
year: '2022'
...
---
_id: '12157'
abstract:
- lang: eng
text: 'Polygenic adaptation is thought to be ubiquitous, yet remains poorly understood.
Here, we model this process analytically, in the plausible setting of a highly
polygenic, quantitative trait that experiences a sudden shift in the fitness optimum.
We show how the mean phenotype changes over time, depending on the effect sizes
of loci that contribute to variance in the trait, and characterize the allele
dynamics at these loci. Notably, we describe the two phases of the allele dynamics:
The first is a rapid phase, in which directional selection introduces small frequency
differences between alleles whose effects are aligned with or opposed to the shift,
ultimately leading to small differences in their probability of fixation during
a second, longer phase, governed by stabilizing selection. As we discuss, key
results should hold in more general settings and have important implications for
efforts to identify the genetic basis of adaptation in humans and other species.'
acknowledgement: "We thank Guy Amster, Jeremy Berg, Nick Barton, Yuval Simons and
Molly Przeworski for many helpful discussions, and Jeremy Berg, Graham Coop, Joachim
Hermisson, Guillaume Martin, Will Milligan, Peter Ralph, Yuval Simons, Leo Speidel
and Molly Przeworski for comments on the manuscript.\r\nNational Institutes of Health
GM115889 Laura Katharine Hayward Guy Sella \r\nNational Institutes of Health GM121372
Laura Katharine Hayward"
article_number: '66697'
article_processing_charge: No
article_type: original
author:
- first_name: Laura
full_name: Hayward, Laura
id: fc885ee5-24bf-11eb-ad7b-bcc5104c0c1b
last_name: Hayward
- first_name: Guy
full_name: Sella, Guy
last_name: Sella
citation:
ama: Hayward L, Sella G. Polygenic adaptation after a sudden change in environment.
eLife. 2022;11. doi:10.7554/elife.66697
apa: Hayward, L., & Sella, G. (2022). Polygenic adaptation after a sudden change
in environment. ELife. eLife Sciences Publications. https://doi.org/10.7554/elife.66697
chicago: Hayward, Laura, and Guy Sella. “Polygenic Adaptation after a Sudden Change
in Environment.” ELife. eLife Sciences Publications, 2022. https://doi.org/10.7554/elife.66697.
ieee: L. Hayward and G. Sella, “Polygenic adaptation after a sudden change in environment,”
eLife, vol. 11. eLife Sciences Publications, 2022.
ista: Hayward L, Sella G. 2022. Polygenic adaptation after a sudden change in environment.
eLife. 11, 66697.
mla: Hayward, Laura, and Guy Sella. “Polygenic Adaptation after a Sudden Change
in Environment.” ELife, vol. 11, 66697, eLife Sciences Publications, 2022,
doi:10.7554/elife.66697.
short: L. Hayward, G. Sella, ELife 11 (2022).
date_created: 2023-01-12T12:09:00Z
date_published: 2022-09-26T00:00:00Z
date_updated: 2023-08-04T09:04:58Z
day: '26'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.7554/elife.66697
external_id:
isi:
- '000890735600001'
file:
- access_level: open_access
checksum: 28de155b231ac1c8d4501c98b2fb359a
content_type: application/pdf
creator: dernst
date_created: 2023-01-24T12:21:32Z
date_updated: 2023-01-24T12:21:32Z
file_id: '12363'
file_name: 2022_eLife_Hayward.pdf
file_size: 18935612
relation: main_file
success: 1
file_date_updated: 2023-01-24T12:21:32Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
keyword:
- General Immunology and Microbiology
- General Biochemistry
- Genetics and Molecular Biology
- General Medicine
- General Neuroscience
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
publication: eLife
publication_identifier:
eissn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Polygenic adaptation after a sudden change in environment
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2022'
...
---
_id: '12166'
abstract:
- lang: eng
text: Kerstin Johannesson is a marine ecologist and evolutionary biologist based
at the Tjärnö Marine Laboratory of the University of Gothenburg, which is situated
in the beautiful Kosterhavet National Park on the Swedish west coast. Her work,
using marine periwinkles (especially Littorina saxatilis and L. fabalis) as main
model systems, has made a remarkable contribution to marine evolutionary biology
and our understanding of local adaptation and its genetic underpinnings.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Roger
full_name: Butlin, Roger
last_name: Butlin
citation:
ama: Westram AM, Butlin R. Professor Kerstin Johannesson–winner of the 2022 Molecular
Ecology Prize. Molecular Ecology. 2022;32(1):26-29. doi:10.1111/mec.16779
apa: Westram, A. M., & Butlin, R. (2022). Professor Kerstin Johannesson–winner
of the 2022 Molecular Ecology Prize. Molecular Ecology. Wiley. https://doi.org/10.1111/mec.16779
chicago: Westram, Anja M, and Roger Butlin. “Professor Kerstin Johannesson–Winner
of the 2022 Molecular Ecology Prize.” Molecular Ecology. Wiley, 2022. https://doi.org/10.1111/mec.16779.
ieee: A. M. Westram and R. Butlin, “Professor Kerstin Johannesson–winner of the
2022 Molecular Ecology Prize,” Molecular Ecology, vol. 32, no. 1. Wiley,
pp. 26–29, 2022.
ista: Westram AM, Butlin R. 2022. Professor Kerstin Johannesson–winner of the 2022
Molecular Ecology Prize. Molecular Ecology. 32(1), 26–29.
mla: Westram, Anja M., and Roger Butlin. “Professor Kerstin Johannesson–Winner of
the 2022 Molecular Ecology Prize.” Molecular Ecology, vol. 32, no. 1, Wiley,
2022, pp. 26–29, doi:10.1111/mec.16779.
short: A.M. Westram, R. Butlin, Molecular Ecology 32 (2022) 26–29.
date_created: 2023-01-12T12:10:28Z
date_published: 2022-11-28T00:00:00Z
date_updated: 2023-08-04T09:09:15Z
day: '28'
department:
- _id: NiBa
doi: 10.1111/mec.16779
external_id:
isi:
- '000892168800001'
intvolume: ' 32'
isi: 1
issue: '1'
keyword:
- Genetics
- Ecology
- Evolution
- Behavior and Systematics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1111/mec.16779
month: '11'
oa: 1
oa_version: Published Version
page: 26-29
publication: Molecular Ecology
publication_identifier:
eissn:
- 1365-294X
issn:
- 0962-1083
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Professor Kerstin Johannesson–winner of the 2022 Molecular Ecology Prize
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 32
year: '2022'
...
---
_id: '12234'
abstract:
- lang: eng
text: Hybrid speciation—the origin of new species resulting from the hybridization
of genetically divergent lineages—was once considered rare, but genomic data suggest
that it may occur more often than once thought. In this study, Noguerales and
Ortego found genomic evidence supporting the hybrid origin of a grasshopper that
is able to exploit a broader range of host plants than either of its putative
parents.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
citation:
ama: 'Stankowski S. Digest: On the origin of a possible hybrid species. Evolution.
2022;76(11):2784-2785. doi:10.1111/evo.14632'
apa: 'Stankowski, S. (2022). Digest: On the origin of a possible hybrid species.
Evolution. Wiley. https://doi.org/10.1111/evo.14632'
chicago: 'Stankowski, Sean. “Digest: On the Origin of a Possible Hybrid Species.”
Evolution. Wiley, 2022. https://doi.org/10.1111/evo.14632.'
ieee: 'S. Stankowski, “Digest: On the origin of a possible hybrid species,” Evolution,
vol. 76, no. 11. Wiley, pp. 2784–2785, 2022.'
ista: 'Stankowski S. 2022. Digest: On the origin of a possible hybrid species. Evolution.
76(11), 2784–2785.'
mla: 'Stankowski, Sean. “Digest: On the Origin of a Possible Hybrid Species.” Evolution,
vol. 76, no. 11, Wiley, 2022, pp. 2784–85, doi:10.1111/evo.14632.'
short: S. Stankowski, Evolution 76 (2022) 2784–2785.
date_created: 2023-01-16T09:50:48Z
date_published: 2022-11-01T00:00:00Z
date_updated: 2023-08-04T09:35:48Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/evo.14632
external_id:
isi:
- '000855751600001'
file:
- access_level: open_access
checksum: 4c0f05083b414ac0323a1b9ee1abc275
content_type: application/pdf
creator: dernst
date_created: 2023-01-27T11:28:38Z
date_updated: 2023-01-27T11:28:38Z
file_id: '12425'
file_name: 2022_Evolution_Stankowski.pdf
file_size: 287282
relation: main_file
success: 1
file_date_updated: 2023-01-27T11:28:38Z
has_accepted_license: '1'
intvolume: ' 76'
isi: 1
issue: '11'
keyword:
- General Agricultural and Biological Sciences
- Genetics
- Ecology
- Evolution
- Behavior and Systematics
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '11'
oa: 1
oa_version: Published Version
page: 2784-2785
publication: Evolution
publication_identifier:
eissn:
- 1558-5646
issn:
- 0014-3820
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Digest: On the origin of a possible hybrid species'
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 76
year: '2022'
...
---
_id: '12247'
abstract:
- lang: eng
text: Chromosomal inversions have been shown to play a major role in a local adaptation
by suppressing recombination between alternative arrangements and maintaining
beneficial allele combinations. However, so far, their importance relative to
the remaining genome remains largely unknown. Understanding the genetic architecture
of adaptation requires better estimates of how loci of different effect sizes
contribute to phenotypic variation. Here, we used three Swedish islands where
the marine snail Littorina saxatilis has repeatedly evolved into two distinct
ecotypes along a habitat transition. We estimated the contribution of inversion
polymorphisms to phenotypic divergence while controlling for polygenic effects
in the remaining genome using a quantitative genetics framework. We confirmed
the importance of inversions but showed that contributions of loci outside inversions
are of similar magnitude, with variable proportions dependent on the trait and
the population. Some inversions showed consistent effects across all sites, whereas
others exhibited site-specific effects, indicating that the genomic basis for
replicated phenotypic divergence is only partly shared. The contributions of sexual
dimorphism as well as environmental factors to phenotypic variation were significant
but minor compared to inversions and polygenic background. Overall, this integrated
approach provides insight into the multiple mechanisms contributing to parallel
phenotypic divergence.
acknowledgement: We thank everyone who helped with fieldwork, snail processing, and
DNA extractions, particularly Laura Brettell, Mårten Duvetorp, Juan Galindo, Anne-Lise
Liabot, Irena Senčić, and Zuzanna Zagrodzka. We also thank Rui Faria and Jenny Larsson
for their contributions, with inversions and shell shape respectively. KJ was funded
by the Swedish research council Vetenskapsrådet, grant number 2017-03798. R.K.B.
and E.K. were funded by the European Research Council (ERC-2015-AdG-693030-BARRIERS).
R.K.B. was also funded by the Natural Environment Research Council and the Swedish
Research Council Vetenskapsrådet.
article_processing_charge: No
article_type: original
author:
- first_name: Eva L.
full_name: Koch, Eva L.
last_name: Koch
- first_name: Mark
full_name: Ravinet, Mark
last_name: Ravinet
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
citation:
ama: Koch EL, Ravinet M, Westram AM, Johannesson K, Butlin RK. Genetic architecture
of repeated phenotypic divergence in Littorina saxatilis evolution. Evolution.
2022;76(10):2332-2346. doi:10.1111/evo.14602
apa: Koch, E. L., Ravinet, M., Westram, A. M., Johannesson, K., & Butlin, R.
K. (2022). Genetic architecture of repeated phenotypic divergence in Littorina
saxatilis evolution. Evolution. Wiley. https://doi.org/10.1111/evo.14602
chicago: Koch, Eva L., Mark Ravinet, Anja M Westram, Kerstin Johannesson, and Roger
K. Butlin. “Genetic Architecture of Repeated Phenotypic Divergence in Littorina
Saxatilis Evolution.” Evolution. Wiley, 2022. https://doi.org/10.1111/evo.14602.
ieee: E. L. Koch, M. Ravinet, A. M. Westram, K. Johannesson, and R. K. Butlin, “Genetic
architecture of repeated phenotypic divergence in Littorina saxatilis evolution,”
Evolution, vol. 76, no. 10. Wiley, pp. 2332–2346, 2022.
ista: Koch EL, Ravinet M, Westram AM, Johannesson K, Butlin RK. 2022. Genetic architecture
of repeated phenotypic divergence in Littorina saxatilis evolution. Evolution.
76(10), 2332–2346.
mla: Koch, Eva L., et al. “Genetic Architecture of Repeated Phenotypic Divergence
in Littorina Saxatilis Evolution.” Evolution, vol. 76, no. 10, Wiley, 2022,
pp. 2332–46, doi:10.1111/evo.14602.
short: E.L. Koch, M. Ravinet, A.M. Westram, K. Johannesson, R.K. Butlin, Evolution
76 (2022) 2332–2346.
date_created: 2023-01-16T09:54:15Z
date_published: 2022-10-01T00:00:00Z
date_updated: 2023-08-04T09:42:11Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/evo.14602
external_id:
isi:
- '000848449100001'
pmid:
- '35994296'
file:
- access_level: open_access
checksum: defd8a4bea61cf00a3c88d4a30e2728c
content_type: application/pdf
creator: dernst
date_created: 2023-01-30T08:45:35Z
date_updated: 2023-01-30T08:45:35Z
file_id: '12439'
file_name: 2022_Evolution_Koch.pdf
file_size: 2990581
relation: main_file
success: 1
file_date_updated: 2023-01-30T08:45:35Z
has_accepted_license: '1'
intvolume: ' 76'
isi: 1
issue: '10'
keyword:
- General Agricultural and Biological Sciences
- Genetics
- Ecology
- Evolution
- Behavior and Systematics
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
page: 2332-2346
pmid: 1
publication: Evolution
publication_identifier:
eissn:
- 1558-5646
issn:
- 0014-3820
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '13066'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Genetic architecture of repeated phenotypic divergence in Littorina saxatilis
evolution
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 76
year: '2022'
...
---
_id: '13066'
abstract:
- lang: eng
text: Chromosomal inversions have been shown to play a major role in local adaptation
by suppressing recombination between alternative arrangements and maintaining
beneficial allele combinations. However, so far, their importance relative to
the remaining genome remains largely unknown. Understanding the genetic architecture
of adaptation requires better estimates of how loci of different effect sizes
contribute to phenotypic variation. Here, we used three Swedish islands where
the marine snail Littorina saxatilis has repeatedly evolved into two distinct
ecotypes along a habitat transition. We estimated the contribution of inversion
polymorphisms to phenotypic divergence while controlling for polygenic effects
in the remaining genome using a quantitative genetics framework. We confirmed
the importance of inversions but showed that contributions of loci outside inversions
are of similar magnitude, with variable proportions dependent on the trait and
the population. Some inversions showed consistent effects across all sites, whereas
others exhibited site-specific effects, indicating that the genomic basis for
replicated phenotypic divergence is only partly shared. The contributions of sexual
dimorphism as well as environmental factors to phenotypic variation were significant
but minor compared to inversions and polygenic background. Overall, this integrated
approach provides insight into the multiple mechanisms contributing to parallel
phenotypic divergence.
article_processing_charge: No
author:
- first_name: Eva
full_name: Koch, Eva
last_name: Koch
- first_name: Mark
full_name: Ravinet, Mark
last_name: Ravinet
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Kerstin
full_name: Jonannesson, Kerstin
last_name: Jonannesson
- first_name: Roger
full_name: Butlin, Roger
last_name: Butlin
citation:
ama: 'Koch E, Ravinet M, Westram AM, Jonannesson K, Butlin R. Data from: Genetic
architecture of repeated phenotypic divergence in Littorina saxatilis ecotype
evolution. 2022. doi:10.5061/DRYAD.M905QFV4B'
apa: 'Koch, E., Ravinet, M., Westram, A. M., Jonannesson, K., & Butlin, R. (2022).
Data from: Genetic architecture of repeated phenotypic divergence in Littorina
saxatilis ecotype evolution. Dryad. https://doi.org/10.5061/DRYAD.M905QFV4B'
chicago: 'Koch, Eva, Mark Ravinet, Anja M Westram, Kerstin Jonannesson, and Roger
Butlin. “Data from: Genetic Architecture of Repeated Phenotypic Divergence in
Littorina Saxatilis Ecotype Evolution.” Dryad, 2022. https://doi.org/10.5061/DRYAD.M905QFV4B.'
ieee: 'E. Koch, M. Ravinet, A. M. Westram, K. Jonannesson, and R. Butlin, “Data
from: Genetic architecture of repeated phenotypic divergence in Littorina saxatilis
ecotype evolution.” Dryad, 2022.'
ista: 'Koch E, Ravinet M, Westram AM, Jonannesson K, Butlin R. 2022. Data from:
Genetic architecture of repeated phenotypic divergence in Littorina saxatilis
ecotype evolution, Dryad, 10.5061/DRYAD.M905QFV4B.'
mla: 'Koch, Eva, et al. Data from: Genetic Architecture of Repeated Phenotypic
Divergence in Littorina Saxatilis Ecotype Evolution. Dryad, 2022, doi:10.5061/DRYAD.M905QFV4B.'
short: E. Koch, M. Ravinet, A.M. Westram, K. Jonannesson, R. Butlin, (2022).
date_created: 2023-05-23T16:33:12Z
date_published: 2022-07-28T00:00:00Z
date_updated: 2023-08-04T09:42:10Z
day: '28'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.5061/DRYAD.M905QFV4B
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.m905qfv4b
month: '07'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '12247'
relation: used_in_publication
status: public
status: public
title: 'Data from: Genetic architecture of repeated phenotypic divergence in Littorina
saxatilis ecotype evolution'
tmp:
image: /images/cc_0.png
legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
name: Creative Commons Public Domain Dedication (CC0 1.0)
short: CC0 (1.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2022'
...
---
_id: '12264'
abstract:
- lang: eng
text: Reproductive isolation (RI) is a core concept in evolutionary biology. It
has been the central focus of speciation research since the modern synthesis and
is the basis by which biological species are defined. Despite this, the term is
used in seemingly different ways, and attempts to quantify RI have used very different
approaches. After showing that the field lacks a clear definition of the term,
we attempt to clarify key issues, including what RI is, how it can be quantified
in principle, and how it can be measured in practice. Following other definitions
with a genetic focus, we propose that RI is a quantitative measure of the effect
that genetic differences between populations have on gene flow. Specifically,
RI compares the flow of neutral alleles in the presence of these genetic differences
to the flow without any such differences. RI is thus greater than zero when genetic
differences between populations reduce the flow of neutral alleles between populations.
We show how RI can be quantified in a range of scenarios. A key conclusion is
that RI depends strongly on circumstances—including the spatial, temporal and
genomic context—making it difficult to compare across systems. After reviewing
methods for estimating RI from data, we conclude that it is difficult to measure
in practice. We discuss our findings in light of the goals of speciation research
and encourage the use of methods for estimating RI that integrate organismal and
genetic approaches.
acknowledgement: 'We are grateful to the participants of the ESEB satellite symposium
‘Understanding reproductive isolation: bridging conceptual barriers in speciation research’ in 2021 for the interesting discussions that helped us clarify the thoughts presented in this article. We thank Roger
Butlin, Michael Turelli and two anonymous reviewers for their thoughtful comments
on this manuscript. We are also very grateful to Roger Butlin and the Barton Group
for the continued conversa-tions about RI. In addition, we thank all participants
of the speciation survey. Part of this work was funded by the Austrian Science Fund
FWF (grant P 32166)'
article_processing_charge: Yes (via OA deal)
article_type: review
author:
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
- first_name: Parvathy
full_name: Surendranadh, Parvathy
id: 455235B8-F248-11E8-B48F-1D18A9856A87
last_name: Surendranadh
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Westram AM, Stankowski S, Surendranadh P, Barton NH. What is reproductive isolation?
Journal of Evolutionary Biology. 2022;35(9):1143-1164. doi:10.1111/jeb.14005
apa: Westram, A. M., Stankowski, S., Surendranadh, P., & Barton, N. H. (2022).
What is reproductive isolation? Journal of Evolutionary Biology. Wiley.
https://doi.org/10.1111/jeb.14005
chicago: Westram, Anja M, Sean Stankowski, Parvathy Surendranadh, and Nicholas H
Barton. “What Is Reproductive Isolation?” Journal of Evolutionary Biology.
Wiley, 2022. https://doi.org/10.1111/jeb.14005.
ieee: A. M. Westram, S. Stankowski, P. Surendranadh, and N. H. Barton, “What is
reproductive isolation?,” Journal of Evolutionary Biology, vol. 35, no.
9. Wiley, pp. 1143–1164, 2022.
ista: Westram AM, Stankowski S, Surendranadh P, Barton NH. 2022. What is reproductive
isolation? Journal of Evolutionary Biology. 35(9), 1143–1164.
mla: Westram, Anja M., et al. “What Is Reproductive Isolation?” Journal of Evolutionary
Biology, vol. 35, no. 9, Wiley, 2022, pp. 1143–64, doi:10.1111/jeb.14005.
short: A.M. Westram, S. Stankowski, P. Surendranadh, N.H. Barton, Journal of Evolutionary
Biology 35 (2022) 1143–1164.
date_created: 2023-01-16T09:59:24Z
date_published: 2022-09-01T00:00:00Z
date_updated: 2023-08-04T09:53:40Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/jeb.14005
external_id:
isi:
- '000849851100002'
pmid:
- '36063156'
file:
- access_level: open_access
checksum: f08de57112330a7ee88d2e1b20576a1e
content_type: application/pdf
creator: dernst
date_created: 2023-01-30T10:05:31Z
date_updated: 2023-01-30T10:05:31Z
file_id: '12448'
file_name: 2022_JourEvoBiology_Westram.pdf
file_size: 3146793
relation: main_file
success: 1
file_date_updated: 2023-01-30T10:05:31Z
has_accepted_license: '1'
intvolume: ' 35'
isi: 1
issue: '9'
keyword:
- Ecology
- Evolution
- Behavior and Systematics
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 1143-1164
pmid: 1
project:
- _id: 05959E1C-7A3F-11EA-A408-12923DDC885E
grant_number: P32166
name: The maintenance of alternative adaptive peaks in snapdragons
publication: Journal of Evolutionary Biology
publication_identifier:
eissn:
- 1420-9101
issn:
- 1010-061X
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '12265'
relation: other
status: public
scopus_import: '1'
status: public
title: What is reproductive isolation?
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 35
year: '2022'
...
---
_id: '12265'
acknowledgement: We are very grateful to the authors of the commentaries for the interesting
discussion and to Luke Holman for handling this set of manuscripts. Part of this
work was funded by the Austrian Science Fund FWF (grant P 32166).
article_processing_charge: Yes (via OA deal)
article_type: letter_note
author:
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
- first_name: Parvathy
full_name: Surendranadh, Parvathy
id: 455235B8-F248-11E8-B48F-1D18A9856A87
last_name: Surendranadh
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Westram AM, Stankowski S, Surendranadh P, Barton NH. Reproductive isolation,
speciation, and the value of disagreement: A reply to the commentaries on ‘What
is reproductive isolation?’ Journal of Evolutionary Biology. 2022;35(9):1200-1205.
doi:10.1111/jeb.14082'
apa: 'Westram, A. M., Stankowski, S., Surendranadh, P., & Barton, N. H. (2022).
Reproductive isolation, speciation, and the value of disagreement: A reply to
the commentaries on ‘What is reproductive isolation?’ Journal of Evolutionary
Biology. Wiley. https://doi.org/10.1111/jeb.14082'
chicago: 'Westram, Anja M, Sean Stankowski, Parvathy Surendranadh, and Nicholas
H Barton. “Reproductive Isolation, Speciation, and the Value of Disagreement:
A Reply to the Commentaries on ‘What Is Reproductive Isolation?’” Journal of
Evolutionary Biology. Wiley, 2022. https://doi.org/10.1111/jeb.14082.'
ieee: 'A. M. Westram, S. Stankowski, P. Surendranadh, and N. H. Barton, “Reproductive
isolation, speciation, and the value of disagreement: A reply to the commentaries
on ‘What is reproductive isolation?,’” Journal of Evolutionary Biology,
vol. 35, no. 9. Wiley, pp. 1200–1205, 2022.'
ista: 'Westram AM, Stankowski S, Surendranadh P, Barton NH. 2022. Reproductive isolation,
speciation, and the value of disagreement: A reply to the commentaries on ‘What
is reproductive isolation?’ Journal of Evolutionary Biology. 35(9), 1200–1205.'
mla: 'Westram, Anja M., et al. “Reproductive Isolation, Speciation, and the Value
of Disagreement: A Reply to the Commentaries on ‘What Is Reproductive Isolation?’”
Journal of Evolutionary Biology, vol. 35, no. 9, Wiley, 2022, pp. 1200–05,
doi:10.1111/jeb.14082.'
short: A.M. Westram, S. Stankowski, P. Surendranadh, N.H. Barton, Journal of Evolutionary
Biology 35 (2022) 1200–1205.
date_created: 2023-01-16T09:59:37Z
date_published: 2022-09-01T00:00:00Z
date_updated: 2023-08-04T09:53:41Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1111/jeb.14082
external_id:
isi:
- '000849851100009'
file:
- access_level: open_access
checksum: 27268009e5eec030bc10667a4ac5ed4c
content_type: application/pdf
creator: dernst
date_created: 2023-01-30T10:14:09Z
date_updated: 2023-01-30T10:14:09Z
file_id: '12449'
file_name: 2022_JourEvoBiology_Westram_Response.pdf
file_size: 349603
relation: main_file
success: 1
file_date_updated: 2023-01-30T10:14:09Z
has_accepted_license: '1'
intvolume: ' 35'
isi: 1
issue: '9'
keyword:
- Ecology
- Evolution
- Behavior and Systematics
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 1200-1205
project:
- _id: 05959E1C-7A3F-11EA-A408-12923DDC885E
grant_number: P32166
name: The maintenance of alternative adaptive peaks in snapdragons
publication: Journal of Evolutionary Biology
publication_identifier:
eissn:
- 1420-9101
issn:
- 1010-061X
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '12264'
relation: other
status: public
scopus_import: '1'
status: public
title: 'Reproductive isolation, speciation, and the value of disagreement: A reply
to the commentaries on ‘What is reproductive isolation?’'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 35
year: '2022'
...
---
_id: '10787'
abstract:
- lang: eng
text: "A species distributed across diverse environments may adapt to local conditions.
We ask how quickly such a species changes its range in response to changed conditions.
Szép et al. (Szép E, Sachdeva H, Barton NH. 2021 Polygenic local adaptation in
metapopulations: a stochastic eco-evolutionary model. Evolution75, 1030–1045 (doi:10.1111/evo.14210))
used the infinite island model to find the stationary distribution of allele frequencies
and deme sizes. We extend this to find how a metapopulation responds to changes
in carrying capacity, selection strength, or migration rate when deme sizes are
fixed. We further develop a ‘fixed-state’ approximation. Under this approximation,
polymorphism is only possible for a narrow range of habitat proportions when selection
is weak compared to drift, but for a much wider range otherwise. When rates of
selection or migration relative to drift change in a single deme of the metapopulation,
the population takes a time of order m−1 to reach the new equilibrium. However,
even with many loci, there can be substantial fluctuations in net adaptation,
because at each locus, alleles randomly get lost or fixed. Thus, in a finite metapopulation,
variation may gradually be lost by chance, even if it would persist in an infinite
metapopulation. When conditions change across the whole metapopulation, there
can be rapid change, which is predicted well by the fixed-state approximation.
This work helps towards an understanding of how metapopulations extend their range
across diverse environments.\r\nThis article is part of the theme issue ‘Species’
ranges in the face of changing environments (Part II)’."
acknowledgement: This research was partly funded by the Austrian Science Fund (FWF)
[FWF P-32896B].
article_processing_charge: No
article_type: original
author:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Oluwafunmilola O
full_name: Olusanya, Oluwafunmilola O
id: 41AD96DC-F248-11E8-B48F-1D18A9856A87
last_name: Olusanya
orcid: 0000-0003-1971-8314
citation:
ama: 'Barton NH, Olusanya OO. The response of a metapopulation to a changing environment.
Philosophical Transactions of the Royal Society B: Biological Sciences.
2022;377(1848). doi:10.1098/rstb.2021.0009'
apa: 'Barton, N. H., & Olusanya, O. O. (2022). The response of a metapopulation
to a changing environment. Philosophical Transactions of the Royal Society
B: Biological Sciences. The Royal Society. https://doi.org/10.1098/rstb.2021.0009'
chicago: 'Barton, Nicholas H, and Oluwafunmilola O Olusanya. “The Response of a
Metapopulation to a Changing Environment.” Philosophical Transactions of the
Royal Society B: Biological Sciences. The Royal Society, 2022. https://doi.org/10.1098/rstb.2021.0009.'
ieee: 'N. H. Barton and O. O. Olusanya, “The response of a metapopulation to a changing
environment,” Philosophical Transactions of the Royal Society B: Biological
Sciences, vol. 377, no. 1848. The Royal Society, 2022.'
ista: 'Barton NH, Olusanya OO. 2022. The response of a metapopulation to a changing
environment. Philosophical Transactions of the Royal Society B: Biological Sciences.
377(1848).'
mla: 'Barton, Nicholas H., and Oluwafunmilola O. Olusanya. “The Response of a Metapopulation
to a Changing Environment.” Philosophical Transactions of the Royal Society
B: Biological Sciences, vol. 377, no. 1848, The Royal Society, 2022, doi:10.1098/rstb.2021.0009.'
short: 'N.H. Barton, O.O. Olusanya, Philosophical Transactions of the Royal Society
B: Biological Sciences 377 (2022).'
date_created: 2022-02-21T16:08:10Z
date_published: 2022-04-11T00:00:00Z
date_updated: 2024-01-26T12:00:53Z
day: '11'
ddc:
- '570'
department:
- _id: GradSch
- _id: NiBa
doi: 10.1098/rstb.2021.0009
external_id:
isi:
- '000758140300001'
pmid:
- '35184588'
file:
- access_level: open_access
checksum: 3b0243738f01bf3c07e0d7e8dc64f71d
content_type: application/pdf
creator: dernst
date_created: 2022-08-02T06:14:32Z
date_updated: 2022-08-02T06:14:32Z
file_id: '11719'
file_name: 2022_PhilosophicalTransactionsRSB_Barton.pdf
file_size: 1349672
relation: main_file
success: 1
file_date_updated: 2022-08-02T06:14:32Z
has_accepted_license: '1'
intvolume: ' 377'
isi: 1
issue: '1848'
keyword:
- General Agricultural and Biological Sciences
- General Biochemistry
- Genetics and Molecular Biology
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: c08d3278-5a5b-11eb-8a69-fdb09b55f4b8
grant_number: P32896
name: Causes and consequences of population fragmentation
publication: 'Philosophical Transactions of the Royal Society B: Biological Sciences'
publication_identifier:
eissn:
- 1471-2970
issn:
- 0962-8436
publication_status: published
publisher: The Royal Society
quality_controlled: '1'
related_material:
record:
- id: '14711'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: The response of a metapopulation to a changing environment
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 377
year: '2022'
...
---
_id: '10658'
abstract:
- lang: eng
text: We analyse how migration from a large mainland influences genetic load and
population numbers on an island, in a scenario where fitness-affecting variants
are unconditionally deleterious, and where numbers decline with increasing load.
Our analysis shows that migration can have qualitatively different effects, depending
on the total mutation target and fitness effects of deleterious variants. In particular,
we find that populations exhibit a genetic Allee effect across a wide range of
parameter combinations, when variants are partially recessive, cycling between
low-load (large-population) and high-load (sink) states. Increased migration reduces
load in the sink state (by increasing heterozygosity) but further inflates load
in the large-population state (by hindering purging). We identify various critical
parameter thresholds at which one or other stable state collapses, and discuss
how these thresholds are influenced by the genetic versus demographic effects
of migration. Our analysis is based on a ‘semi-deterministic’ analysis, which
accounts for genetic drift but neglects demographic stochasticity. We also compare
against simulations which account for both demographic stochasticity and drift.
Our results clarify the importance of gene flow as a key determinant of extinction
risk in peripheral populations, even in the absence of ecological gradients. This
article is part of the theme issue ‘Species’ ranges in the face of changing environments
(part I)’.
acknowledgement: This research was partly funded by the Austrian Science Fund (FWF)
(grant no. P-32896B).
article_number: '20210010'
article_processing_charge: No
article_type: original
author:
- first_name: Himani
full_name: Sachdeva, Himani
last_name: Sachdeva
- first_name: Oluwafunmilola O
full_name: Olusanya, Oluwafunmilola O
id: 41AD96DC-F248-11E8-B48F-1D18A9856A87
last_name: Olusanya
orcid: 0000-0003-1971-8314
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: 'Sachdeva H, Olusanya OO, Barton NH. Genetic load and extinction in peripheral
populations: The roles of migration, drift and demographic stochasticity. Philosophical
Transactions of the Royal Society B. 2022;377(1846). doi:10.1098/rstb.2021.0010'
apa: 'Sachdeva, H., Olusanya, O. O., & Barton, N. H. (2022). Genetic load and
extinction in peripheral populations: The roles of migration, drift and demographic
stochasticity. Philosophical Transactions of the Royal Society B. The Royal
Society. https://doi.org/10.1098/rstb.2021.0010'
chicago: 'Sachdeva, Himani, Oluwafunmilola O Olusanya, and Nicholas H Barton. “Genetic
Load and Extinction in Peripheral Populations: The Roles of Migration, Drift and
Demographic Stochasticity.” Philosophical Transactions of the Royal Society
B. The Royal Society, 2022. https://doi.org/10.1098/rstb.2021.0010.'
ieee: 'H. Sachdeva, O. O. Olusanya, and N. H. Barton, “Genetic load and extinction
in peripheral populations: The roles of migration, drift and demographic stochasticity,”
Philosophical Transactions of the Royal Society B, vol. 377, no. 1846.
The Royal Society, 2022.'
ista: 'Sachdeva H, Olusanya OO, Barton NH. 2022. Genetic load and extinction in
peripheral populations: The roles of migration, drift and demographic stochasticity.
Philosophical Transactions of the Royal Society B. 377(1846), 20210010.'
mla: 'Sachdeva, Himani, et al. “Genetic Load and Extinction in Peripheral Populations:
The Roles of Migration, Drift and Demographic Stochasticity.” Philosophical
Transactions of the Royal Society B, vol. 377, no. 1846, 20210010, The Royal
Society, 2022, doi:10.1098/rstb.2021.0010.'
short: H. Sachdeva, O.O. Olusanya, N.H. Barton, Philosophical Transactions of the
Royal Society B 377 (2022).
date_created: 2022-01-24T10:34:53Z
date_published: 2022-01-24T00:00:00Z
date_updated: 2024-01-26T12:00:53Z
day: '24'
ddc:
- '576'
department:
- _id: GradSch
- _id: NiBa
doi: 10.1098/rstb.2021.0010
external_id:
isi:
- '000745854300008'
pmid:
- '35067097'
file:
- access_level: open_access
checksum: 04ca9e2f0e344d680b947f2457df8d0a
content_type: application/pdf
creator: oolusany
date_created: 2022-01-24T10:34:45Z
date_updated: 2022-01-24T10:34:45Z
file_id: '10659'
file_name: rstb.2021.0010.pdf
file_size: 1845792
relation: main_file
file_date_updated: 2022-01-24T10:34:45Z
has_accepted_license: '1'
intvolume: ' 377'
isi: 1
issue: '1846'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: c08d3278-5a5b-11eb-8a69-fdb09b55f4b8
grant_number: P32896
name: Causes and consequences of population fragmentation
publication: Philosophical Transactions of the Royal Society B
publication_identifier:
eissn:
- 1471-2970
issn:
- 0962-8436
publication_status: published
publisher: The Royal Society
quality_controlled: '1'
related_material:
link:
- relation: earlier_version
url: https://doi.org/10.1101/2021.08.05.455207
record:
- id: '14711'
relation: dissertation_contains
status: public
status: public
title: 'Genetic load and extinction in peripheral populations: The roles of migration,
drift and demographic stochasticity'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 377
year: '2022'
...
---
_id: '11411'
abstract:
- lang: eng
text: Many studies have quantified the distribution of heterozygosity and relatedness
in natural populations, but few have examined the demographic processes driving
these patterns. In this study, we take a novel approach by studying how population
structure affects both pairwise identity and the distribution of heterozygosity
in a natural population of the self-incompatible plant Antirrhinum majus. Excess
variance in heterozygosity between individuals is due to identity disequilibrium,
which reflects the variance in inbreeding between individuals; it is measured
by the statistic g2. We calculated g2 together with FST and pairwise relatedness
(Fij) using 91 SNPs in 22,353 individuals collected over 11 years. We find that
pairwise Fij declines rapidly over short spatial scales, and the excess variance
in heterozygosity between individuals reflects significant variation in inbreeding.
Additionally, we detect an excess of individuals with around half the average
heterozygosity, indicating either selfing or matings between close relatives.
We use 2 types of simulation to ask whether variation in heterozygosity is consistent
with fine-scale spatial population structure. First, by simulating offspring using
parents drawn from a range of spatial scales, we show that the known pollen dispersal
kernel explains g2. Second, we simulate a 1,000-generation pedigree using the
known dispersal and spatial distribution and find that the resulting g2 is consistent
with that observed from the field data. In contrast, a simulated population with
uniform density underestimates g2, indicating that heterogeneous density promotes
identity disequilibrium. Our study shows that heterogeneous density and leptokurtic
dispersal can together explain the distribution of heterozygosity.
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "Part of this work was funded by Marie Curie COFUND Doctoral Fellowship
and Austrian Science Fund FWF (grant P32166).\r\nWe thank the many volunteers and
friends who have contributed to data collection in the field site over the years,
in particular those who have managed field seasons: Barbora Trubenova, Maria Clara
Melo, Tom Ellis, Eva Cereghetti, Lenka Matejovicova, Beatriz Pablo Carmona. Frederic
Ferrer and Eva Salmerón Mateu have been immensely helpful with logistics at our
informal field station, El Serrat de Planoles. We thank Sean Stankowski for technical
help in\r\nproducing figure 1. This research was also supported by the Scientific
Service Units (SSU) of IST Austria through resources provided by Scientific Computing
(SciComp)."
article_number: iyac083
article_processing_charge: No
article_type: original
author:
- first_name: Parvathy
full_name: Surendranadh, Parvathy
id: 455235B8-F248-11E8-B48F-1D18A9856A87
last_name: Surendranadh
- first_name: Louise S
full_name: Arathoon, Louise S
id: 2CFCFF98-F248-11E8-B48F-1D18A9856A87
last_name: Arathoon
orcid: 0000-0003-1771-714X
- first_name: Carina
full_name: Baskett, Carina
id: 3B4A7CE2-F248-11E8-B48F-1D18A9856A87
last_name: Baskett
orcid: 0000-0002-7354-8574
- first_name: David
full_name: Field, David
id: 419049E2-F248-11E8-B48F-1D18A9856A87
last_name: Field
orcid: 0000-0002-4014-8478
- first_name: Melinda
full_name: Pickup, Melinda
id: 2C78037E-F248-11E8-B48F-1D18A9856A87
last_name: Pickup
orcid: 0000-0001-6118-0541
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Surendranadh P, Arathoon LS, Baskett C, Field D, Pickup M, Barton NH. Effects
of fine-scale population structure on the distribution of heterozygosity in a
long-term study of Antirrhinum majus. Genetics. 2022;221(3). doi:10.1093/genetics/iyac083
apa: Surendranadh, P., Arathoon, L. S., Baskett, C., Field, D., Pickup, M., &
Barton, N. H. (2022). Effects of fine-scale population structure on the distribution
of heterozygosity in a long-term study of Antirrhinum majus. Genetics.
Oxford University Press. https://doi.org/10.1093/genetics/iyac083
chicago: Surendranadh, Parvathy, Louise S Arathoon, Carina Baskett, David Field,
Melinda Pickup, and Nicholas H Barton. “Effects of Fine-Scale Population Structure
on the Distribution of Heterozygosity in a Long-Term Study of Antirrhinum Majus.”
Genetics. Oxford University Press, 2022. https://doi.org/10.1093/genetics/iyac083.
ieee: P. Surendranadh, L. S. Arathoon, C. Baskett, D. Field, M. Pickup, and N. H.
Barton, “Effects of fine-scale population structure on the distribution of heterozygosity
in a long-term study of Antirrhinum majus,” Genetics, vol. 221, no. 3.
Oxford University Press, 2022.
ista: Surendranadh P, Arathoon LS, Baskett C, Field D, Pickup M, Barton NH. 2022.
Effects of fine-scale population structure on the distribution of heterozygosity
in a long-term study of Antirrhinum majus. Genetics. 221(3), iyac083.
mla: Surendranadh, Parvathy, et al. “Effects of Fine-Scale Population Structure
on the Distribution of Heterozygosity in a Long-Term Study of Antirrhinum Majus.”
Genetics, vol. 221, no. 3, iyac083, Oxford University Press, 2022, doi:10.1093/genetics/iyac083.
short: P. Surendranadh, L.S. Arathoon, C. Baskett, D. Field, M. Pickup, N.H. Barton,
Genetics 221 (2022).
date_created: 2022-05-26T13:44:50Z
date_published: 2022-07-01T00:00:00Z
date_updated: 2024-02-21T12:38:33Z
day: '01'
ddc:
- '576'
department:
- _id: GradSch
- _id: NiBa
doi: 10.1093/genetics/iyac083
external_id:
isi:
- '000803735800001'
pmid:
- '35639938'
file:
- access_level: open_access
checksum: cc2d56deb608bd53c5cc02f03a875107
content_type: application/pdf
creator: larathoo
date_created: 2022-05-26T12:48:15Z
date_updated: 2022-05-26T12:48:15Z
file_id: '11412'
file_name: Manuscript.pdf
file_size: 885374
relation: main_file
success: 1
- access_level: open_access
checksum: 693742595b6c7ed809423be01460d083
content_type: application/pdf
creator: larathoo
date_created: 2022-05-26T12:48:21Z
date_updated: 2022-05-26T12:48:21Z
file_id: '11413'
file_name: SupplementalMaterial.pdf
file_size: 1401704
relation: main_file
success: 1
file_date_updated: 2022-05-26T12:48:21Z
has_accepted_license: '1'
intvolume: ' 221'
isi: 1
issue: '3'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
pmid: 1
project:
- _id: 05959E1C-7A3F-11EA-A408-12923DDC885E
grant_number: P32166
name: The maintenance of alternative adaptive peaks in snapdragons
publication: Genetics
publication_identifier:
eissn:
- 1943-2631
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
related_material:
record:
- id: '14651'
relation: dissertation_contains
status: public
- id: '11321'
relation: research_data
status: public
- id: '9192'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Effects of fine-scale population structure on the distribution of heterozygosity
in a long-term study of Antirrhinum majus
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 221
year: '2022'
...
---
_id: '12081'
abstract:
- lang: eng
text: 'Selection accumulates information in the genome—it guides stochastically
evolving populations toward states (genotype frequencies) that would be unlikely
under neutrality. This can be quantified as the Kullback–Leibler (KL) divergence
between the actual distribution of genotype frequencies and the corresponding
neutral distribution. First, we show that this population-level information sets
an upper bound on the information at the level of genotype and phenotype, limiting
how precisely they can be specified by selection. Next, we study how the accumulation
and maintenance of information is limited by the cost of selection, measured as
the genetic load or the relative fitness variance, both of which we connect to
the control-theoretic KL cost of control. The information accumulation rate is
upper bounded by the population size times the cost of selection. This bound is
very general, and applies across models (Wright–Fisher, Moran, diffusion) and
to arbitrary forms of selection, mutation, and recombination. Finally, the cost
of maintaining information depends on how it is encoded: Specifying a single allele
out of two is expensive, but one bit encoded among many weakly specified loci
(as in a polygenic trait) is cheap.'
acknowledgement: We thank Ksenia Khudiakova, Wiktor Młynarski, Sean Stankowski, and
two anonymous reviewers for discussions and comments on the manuscript. G.T. and
M.H. acknowledge funding from the Human Frontier Science Program Grant RGP0032/2018.
N.B. acknowledges funding from ERC Grant 250152 “Information and Evolution.”
article_number: e2123152119
article_processing_charge: No
article_type: original
author:
- first_name: Michal
full_name: Hledik, Michal
id: 4171253A-F248-11E8-B48F-1D18A9856A87
last_name: Hledik
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Gašper
full_name: Tkačik, Gašper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkačik
orcid: '1'
citation:
ama: Hledik M, Barton NH, Tkačik G. Accumulation and maintenance of information
in evolution. Proceedings of the National Academy of Sciences. 2022;119(36).
doi:10.1073/pnas.2123152119
apa: Hledik, M., Barton, N. H., & Tkačik, G. (2022). Accumulation and maintenance
of information in evolution. Proceedings of the National Academy of Sciences.
Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2123152119
chicago: Hledik, Michal, Nicholas H Barton, and Gašper Tkačik. “Accumulation and
Maintenance of Information in Evolution.” Proceedings of the National Academy
of Sciences. Proceedings of the National Academy of Sciences, 2022. https://doi.org/10.1073/pnas.2123152119.
ieee: M. Hledik, N. H. Barton, and G. Tkačik, “Accumulation and maintenance of information
in evolution,” Proceedings of the National Academy of Sciences, vol. 119,
no. 36. Proceedings of the National Academy of Sciences, 2022.
ista: Hledik M, Barton NH, Tkačik G. 2022. Accumulation and maintenance of information
in evolution. Proceedings of the National Academy of Sciences. 119(36), e2123152119.
mla: Hledik, Michal, et al. “Accumulation and Maintenance of Information in Evolution.”
Proceedings of the National Academy of Sciences, vol. 119, no. 36, e2123152119,
Proceedings of the National Academy of Sciences, 2022, doi:10.1073/pnas.2123152119.
short: M. Hledik, N.H. Barton, G. Tkačik, Proceedings of the National Academy of
Sciences 119 (2022).
date_created: 2022-09-11T22:01:55Z
date_published: 2022-08-29T00:00:00Z
date_updated: 2024-03-06T14:22:51Z
day: '29'
ddc:
- '570'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1073/pnas.2123152119
ec_funded: 1
external_id:
isi:
- '000889278400014'
pmid:
- '36037343'
file:
- access_level: open_access
checksum: 6dec51f6567da9039982a571508a8e4d
content_type: application/pdf
creator: dernst
date_created: 2022-09-12T08:08:12Z
date_updated: 2022-09-12T08:08:12Z
file_id: '12091'
file_name: 2022_PNAS_Hledik.pdf
file_size: 2165752
relation: main_file
success: 1
file_date_updated: 2022-09-12T08:08:12Z
has_accepted_license: '1'
intvolume: ' 119'
isi: 1
issue: '36'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
- _id: 2665AAFE-B435-11E9-9278-68D0E5697425
grant_number: RGP0034/2018
name: Can evolution minimize spurious signaling crosstalk to reach optimal performance?
publication: Proceedings of the National Academy of Sciences
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
related_material:
record:
- id: '15020'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Accumulation and maintenance of information in evolution
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 119
year: '2022'
...
---
_id: '11388'
abstract:
- lang: eng
text: "In evolve and resequence experiments, a population is sequenced, subjected
to selection and\r\nthen sequenced again, so that genetic changes before and after
selection can be observed at\r\nthe genetic level. Here, I use these studies to
better understand the genetic basis of complex\r\ntraits - traits which depend
on more than a few genes.\r\nIn the first chapter, I discuss the first evolve
and resequence experiment, in which a population\r\nof mice, the so-called \"Longshanks\"
mice, were selected for tibia length while their body mass\r\nwas kept constant.
The full pedigree is known. We observed a selection response on all\r\nchromosomes
and used the infinitesimal model with linkage, a model which assumes an infinite\r\nnumber
of genes with infinitesimally small effect sizes, as a null model. Results implied
a very\r\npolygenic basis with a few loci of major effect standing out and changing
in parallel. There\r\nwas large variability between the different chromosomes
in this study, probably due to LD.\r\nIn chapter two, I go on to discuss the impact
of LD, on the variability in an allele-frequency\r\nbased summary statistic, giving
an equation based on the initial allele frequencies, average\r\npairwise LD, and
the first four moments of the haplotype block copy number distribution. I\r\ndescribe
this distribution by referring back to the founder generation. I then demonstrate\r\nhow
to infer selection via a maximum likelihood scheme on the example of a single
locus and\r\ndiscuss how to extend this to more realistic scenarios.\r\nIn chapter
three, I discuss the second evolve and resequence experiment, in which a small\r\npopulation
of Drosophila melanogaster was selected for increased pupal case size over 6\r\ngenerations.
The experiment was highly replicated with 27 lines selected within family and
a\r\nknown pedigree. We observed a phenotypic selection response of over one standard
deviation.\r\nI describe the patterns in allele frequency data, including allele
frequency changes and patterns\r\nof heterozygosity, and give ideas for future
work."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Stefanie
full_name: Belohlavy, Stefanie
id: 43FE426A-F248-11E8-B48F-1D18A9856A87
last_name: Belohlavy
orcid: 0000-0002-9849-498X
citation:
ama: Belohlavy S. The genetic basis of complex traits studied via analysis of evolve
and resequence experiments. 2022. doi:10.15479/at:ista:11388
apa: Belohlavy, S. (2022). The genetic basis of complex traits studied via analysis
of evolve and resequence experiments. Institute of Science and Technology
Austria. https://doi.org/10.15479/at:ista:11388
chicago: Belohlavy, Stefanie. “The Genetic Basis of Complex Traits Studied via Analysis
of Evolve and Resequence Experiments.” Institute of Science and Technology Austria,
2022. https://doi.org/10.15479/at:ista:11388.
ieee: S. Belohlavy, “The genetic basis of complex traits studied via analysis of
evolve and resequence experiments,” Institute of Science and Technology Austria,
2022.
ista: Belohlavy S. 2022. The genetic basis of complex traits studied via analysis
of evolve and resequence experiments. Institute of Science and Technology Austria.
mla: Belohlavy, Stefanie. The Genetic Basis of Complex Traits Studied via Analysis
of Evolve and Resequence Experiments. Institute of Science and Technology
Austria, 2022, doi:10.15479/at:ista:11388.
short: S. Belohlavy, The Genetic Basis of Complex Traits Studied via Analysis of
Evolve and Resequence Experiments, Institute of Science and Technology Austria,
2022.
date_created: 2022-05-16T16:49:18Z
date_published: 2022-05-18T00:00:00Z
date_updated: 2023-08-29T06:41:51Z
day: '18'
ddc:
- '576'
degree_awarded: PhD
department:
- _id: GradSch
- _id: NiBa
doi: 10.15479/at:ista:11388
file:
- access_level: open_access
checksum: 4d75e6a619df7e8a9d6e840aee182380
content_type: application/pdf
creator: sbelohla
date_created: 2022-05-19T13:03:13Z
date_updated: 2023-05-20T22:30:03Z
embargo: 2023-05-19
file_id: '11398'
file_name: thesis_sb_final_pdfa.pdf
file_size: 8247240
relation: main_file
- access_level: closed
checksum: 7a5d8b6dd0ca00784f860075b0a7d8f0
content_type: application/x-zip-compressed
creator: sbelohla
date_created: 2022-05-19T13:07:47Z
date_updated: 2023-05-20T22:30:03Z
embargo_to: open_access
file_id: '11399'
file_name: thesis_sb_final.zip
file_size: 7094
relation: source_file
file_date_updated: 2023-05-20T22:30:03Z
has_accepted_license: '1'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: '98'
publication_identifier:
isbn:
- 978-3-99078-018-3
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '6713'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
title: The genetic basis of complex traits studied via analysis of evolve and resequence
experiments
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2022'
...
---
_id: '10535'
abstract:
- lang: eng
text: Realistic models of biological processes typically involve interacting components
on multiple scales, driven by changing environment and inherent stochasticity.
Such models are often analytically and numerically intractable. We revisit a dynamic
maximum entropy method that combines a static maximum entropy with a quasi-stationary
approximation. This allows us to reduce stochastic non-equilibrium dynamics expressed
by the Fokker-Planck equation to a simpler low-dimensional deterministic dynamics,
without the need to track microscopic details. Although the method has been previously
applied to a few (rather complicated) applications in population genetics, our
main goal here is to explain and to better understand how the method works. We
demonstrate the usefulness of the method for two widely studied stochastic problems,
highlighting its accuracy in capturing important macroscopic quantities even in
rapidly changing non-stationary conditions. For the Ornstein-Uhlenbeck process,
the method recovers the exact dynamics whilst for a stochastic island model with
migration from other habitats, the approximation retains high macroscopic accuracy
under a wide range of scenarios in a dynamic environment.
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "Computational resources for the study were provided by the Institute
of Science and Technology, Austria.\r\nKB received funding from the Scientific Grant
Agency of the Slovak Republic under the Grants Nos. 1/0755/19 and 1/0521/20."
article_number: e1009661
article_processing_charge: No
article_type: original
author:
- first_name: Katarína
full_name: Bod'ová, Katarína
id: 2BA24EA0-F248-11E8-B48F-1D18A9856A87
last_name: Bod'ová
orcid: 0000-0002-7214-0171
- first_name: Eniko
full_name: Szep, Eniko
id: 485BB5A4-F248-11E8-B48F-1D18A9856A87
last_name: Szep
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Bodova K, Szep E, Barton NH. Dynamic maximum entropy provides accurate approximation
of structured population dynamics. PLoS Computational Biology. 2021;17(12).
doi:10.1371/journal.pcbi.1009661
apa: Bodova, K., Szep, E., & Barton, N. H. (2021). Dynamic maximum entropy provides
accurate approximation of structured population dynamics. PLoS Computational
Biology. Public Library of Science. https://doi.org/10.1371/journal.pcbi.1009661
chicago: Bodova, Katarina, Eniko Szep, and Nicholas H Barton. “Dynamic Maximum Entropy
Provides Accurate Approximation of Structured Population Dynamics.” PLoS Computational
Biology. Public Library of Science, 2021. https://doi.org/10.1371/journal.pcbi.1009661.
ieee: K. Bodova, E. Szep, and N. H. Barton, “Dynamic maximum entropy provides accurate
approximation of structured population dynamics,” PLoS Computational Biology,
vol. 17, no. 12. Public Library of Science, 2021.
ista: Bodova K, Szep E, Barton NH. 2021. Dynamic maximum entropy provides accurate
approximation of structured population dynamics. PLoS Computational Biology. 17(12),
e1009661.
mla: Bodova, Katarina, et al. “Dynamic Maximum Entropy Provides Accurate Approximation
of Structured Population Dynamics.” PLoS Computational Biology, vol. 17,
no. 12, e1009661, Public Library of Science, 2021, doi:10.1371/journal.pcbi.1009661.
short: K. Bodova, E. Szep, N.H. Barton, PLoS Computational Biology 17 (2021).
date_created: 2021-12-12T23:01:27Z
date_published: 2021-12-01T00:00:00Z
date_updated: 2022-08-01T10:48:04Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
- _id: GaTk
doi: 10.1371/journal.pcbi.1009661
external_id:
arxiv:
- '2102.03669'
pmid:
- '34851948'
file:
- access_level: open_access
checksum: dcd185d4f7e0acee25edf1d6537f447e
content_type: application/pdf
creator: dernst
date_created: 2022-05-16T08:53:11Z
date_updated: 2022-05-16T08:53:11Z
file_id: '11383'
file_name: 2021_PLOsComBio_Bodova.pdf
file_size: 2299486
relation: main_file
success: 1
file_date_updated: 2022-05-16T08:53:11Z
has_accepted_license: '1'
intvolume: ' 17'
issue: '12'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
pmid: 1
publication: PLoS Computational Biology
publication_identifier:
eissn:
- 1553-7358
issn:
- 1553-734X
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Dynamic maximum entropy provides accurate approximation of structured population
dynamics
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 17
year: '2021'
...