--- _id: '6095' abstract: - lang: eng text: Both classical and recent studies suggest that chromosomal inversion polymorphisms are important in adaptation and speciation. However, biases in discovery and reporting of inversions make it difficult to assess their prevalence and biological importance. Here, we use an approach based on linkage disequilibrium among markers genotyped for samples collected across a transect between contrasting habitats to detect chromosomal rearrangements de novo. We report 17 polymorphic rearrangements in a single locality for the coastal marine snail, Littorina saxatilis. Patterns of diversity in the field and of recombination in controlled crosses provide strong evidence that at least the majority of these rearrangements are inversions. Most show clinal changes in frequency between habitats, suggestive of divergent selection, but only one appears to be fixed for different arrangements in the two habitats. Consistent with widespread evidence for balancing selection on inversion polymorphisms, we argue that a combination of heterosis and divergent selection can explain the observed patterns and should be considered in other systems spanning environmental gradients. article_processing_charge: No author: - first_name: Rui full_name: Faria, Rui last_name: Faria - first_name: Pragya full_name: Chaube, Pragya last_name: Chaube - first_name: Hernán E. full_name: Morales, Hernán E. last_name: Morales - first_name: Tomas full_name: Larsson, Tomas last_name: Larsson - first_name: Alan R. full_name: Lemmon, Alan R. last_name: Lemmon - first_name: Emily M. full_name: Lemmon, Emily M. last_name: Lemmon - first_name: Marina full_name: Rafajlović, Marina last_name: Rafajlović - first_name: Marina full_name: Panova, Marina last_name: Panova - first_name: Mark full_name: Ravinet, Mark last_name: Ravinet - 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 - first_name: Roger K. full_name: Butlin, Roger K. last_name: Butlin citation: ama: Faria R, Chaube P, Morales HE, et al. Multiple chromosomal rearrangements in a hybrid zone between Littorina saxatilis ecotypes. Molecular Ecology. 2019;28(6):1375-1393. doi:10.1111/mec.14972 apa: Faria, R., Chaube, P., Morales, H. E., Larsson, T., Lemmon, A. R., Lemmon, E. M., … Butlin, R. K. (2019). Multiple chromosomal rearrangements in a hybrid zone between Littorina saxatilis ecotypes. Molecular Ecology. Wiley. https://doi.org/10.1111/mec.14972 chicago: Faria, Rui, Pragya Chaube, Hernán E. Morales, Tomas Larsson, Alan R. Lemmon, Emily M. Lemmon, Marina Rafajlović, et al. “Multiple Chromosomal Rearrangements in a Hybrid Zone between Littorina Saxatilis Ecotypes.” Molecular Ecology. Wiley, 2019. https://doi.org/10.1111/mec.14972. ieee: R. Faria et al., “Multiple chromosomal rearrangements in a hybrid zone between Littorina saxatilis ecotypes,” Molecular Ecology, vol. 28, no. 6. Wiley, pp. 1375–1393, 2019. ista: Faria R, Chaube P, Morales HE, Larsson T, Lemmon AR, Lemmon EM, Rafajlović M, Panova M, Ravinet M, Johannesson K, Westram AM, Butlin RK. 2019. Multiple chromosomal rearrangements in a hybrid zone between Littorina saxatilis ecotypes. Molecular Ecology. 28(6), 1375–1393. mla: Faria, Rui, et al. “Multiple Chromosomal Rearrangements in a Hybrid Zone between Littorina Saxatilis Ecotypes.” Molecular Ecology, vol. 28, no. 6, Wiley, 2019, pp. 1375–93, doi:10.1111/mec.14972. short: R. Faria, P. Chaube, H.E. Morales, T. Larsson, A.R. Lemmon, E.M. Lemmon, M. Rafajlović, M. Panova, M. Ravinet, K. Johannesson, A.M. Westram, R.K. Butlin, Molecular Ecology 28 (2019) 1375–1393. date_created: 2019-03-10T22:59:21Z date_published: 2019-03-01T00:00:00Z date_updated: 2023-08-24T14:50:27Z day: '01' ddc: - '570' department: - _id: NiBa doi: 10.1111/mec.14972 external_id: isi: - '000465219200013' file: - access_level: open_access checksum: f915885756057ec0ca5912a41f46a887 content_type: application/pdf creator: dernst date_created: 2019-03-11T16:12:54Z date_updated: 2020-07-14T12:47:19Z file_id: '6097' file_name: 2019_MolecularEcology_Faria.pdf file_size: 1510715 relation: main_file file_date_updated: 2020-07-14T12:47:19Z has_accepted_license: '1' intvolume: ' 28' isi: 1 issue: '6' language: - iso: eng month: '03' oa: 1 oa_version: Published Version page: 1375-1393 publication: Molecular Ecology publication_identifier: eissn: - 1365-294X issn: - 0962-1083 publication_status: published publisher: Wiley quality_controlled: '1' related_material: record: - id: '9837' relation: research_data status: public scopus_import: '1' status: public title: Multiple chromosomal rearrangements in a hybrid zone between Littorina saxatilis ecotypes 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: 28 year: '2019' ... --- _id: '6049' abstract: - lang: eng text: 'In this article it is shown that large systems with many interacting units endowing multiple phases display self-oscillations in the presence of linear feedback between the control and order parameters, where an Andronov–Hopf bifurcation takes over the phase transition. This is simply illustrated through the mean field Landau theory whose feedback dynamics turn out to be described by the Van der Pol equation and it is then validated for the fully connected Ising model following heat bath dynamics. Despite its simplicity, this theory accounts potentially for a rich range of phenomena: here it is applied to describe in a stylized way (i) excess demand-price cycles due to strong herding in a simple agent-based market model; (ii) congestion waves in queuing networks triggered by user feedback to delays in overloaded conditions; and (iii) metabolic network oscillations resulting from cell growth control in a bistable phenotypic landscape.' article_number: '045002' article_processing_charge: Yes (in subscription journal) author: - first_name: Daniele full_name: De Martino, Daniele id: 3FF5848A-F248-11E8-B48F-1D18A9856A87 last_name: De Martino orcid: 0000-0002-5214-4706 citation: ama: 'De Martino D. Feedback-induced self-oscillations in large interacting systems subjected to phase transitions. Journal of Physics A: Mathematical and Theoretical. 2019;52(4). doi:10.1088/1751-8121/aaf2dd' apa: 'De Martino, D. (2019). Feedback-induced self-oscillations in large interacting systems subjected to phase transitions. Journal of Physics A: Mathematical and Theoretical. IOP Publishing. https://doi.org/10.1088/1751-8121/aaf2dd' chicago: 'De Martino, Daniele. “Feedback-Induced Self-Oscillations in Large Interacting Systems Subjected to Phase Transitions.” Journal of Physics A: Mathematical and Theoretical. IOP Publishing, 2019. https://doi.org/10.1088/1751-8121/aaf2dd.' ieee: 'D. De Martino, “Feedback-induced self-oscillations in large interacting systems subjected to phase transitions,” Journal of Physics A: Mathematical and Theoretical, vol. 52, no. 4. IOP Publishing, 2019.' ista: 'De Martino D. 2019. Feedback-induced self-oscillations in large interacting systems subjected to phase transitions. Journal of Physics A: Mathematical and Theoretical. 52(4), 045002.' mla: 'De Martino, Daniele. “Feedback-Induced Self-Oscillations in Large Interacting Systems Subjected to Phase Transitions.” Journal of Physics A: Mathematical and Theoretical, vol. 52, no. 4, 045002, IOP Publishing, 2019, doi:10.1088/1751-8121/aaf2dd.' short: 'D. De Martino, Journal of Physics A: Mathematical and Theoretical 52 (2019).' date_created: 2019-02-24T22:59:19Z date_published: 2019-01-07T00:00:00Z date_updated: 2023-08-24T14:49:23Z day: '07' ddc: - '570' department: - _id: GaTk doi: 10.1088/1751-8121/aaf2dd ec_funded: 1 external_id: isi: - '000455379500001' file: - access_level: open_access checksum: 1112304ad363a6d8afaeccece36473cf content_type: application/pdf creator: kschuh date_created: 2019-04-19T12:18:57Z date_updated: 2020-07-14T12:47:17Z file_id: '6344' file_name: 2019_IOP_DeMartino.pdf file_size: 1804557 relation: main_file file_date_updated: 2020-07-14T12:47:17Z has_accepted_license: '1' intvolume: ' 52' isi: 1 issue: '4' language: - iso: eng month: '01' oa: 1 oa_version: Published Version project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: 'Journal of Physics A: Mathematical and Theoretical' publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: Feedback-induced self-oscillations in large interacting systems subjected to phase transitions 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: 52 year: '2019' ... --- _id: '6091' abstract: - lang: eng text: Cortical networks are characterized by sparse connectivity, with synapses found at only a subset of axo-dendritic contacts. Yet within these networks, neurons can exhibit high connection probabilities, suggesting that cell-intrinsic factors, not proximity, determine connectivity. Here, we identify ephrin-B3 (eB3) as a factor that determines synapse density by mediating a cell-cell competition that requires ephrin-B-EphB signaling. In a microisland culture system designed to isolate cell-cell competition, we find that eB3 determines winning and losing neurons in a contest for synapses. In a Mosaic Analysis with Double Markers (MADM) genetic mouse model system in vivo the relative levels of eB3 control spine density in layer 5 and 6 neurons. MADM cortical neurons in vitro reveal that eB3 controls synapse density independently of action potential-driven activity. Our findings illustrate a new class of competitive mechanism mediated by trans-synaptic organizing proteins which control the number of synapses neurons receive relative to neighboring neurons. article_number: e41563 article_processing_charge: No author: - first_name: Nathan T. full_name: Henderson, Nathan T. last_name: Henderson - first_name: Sylvain J. full_name: Le Marchand, Sylvain J. last_name: Le Marchand - first_name: Martin full_name: Hruska, Martin last_name: Hruska - first_name: Simon full_name: Hippenmeyer, Simon id: 37B36620-F248-11E8-B48F-1D18A9856A87 last_name: Hippenmeyer orcid: 0000-0003-2279-1061 - first_name: Liqun full_name: Luo, Liqun last_name: Luo - first_name: Matthew B. full_name: Dalva, Matthew B. last_name: Dalva citation: ama: Henderson NT, Le Marchand SJ, Hruska M, Hippenmeyer S, Luo L, Dalva MB. Ephrin-B3 controls excitatory synapse density through cell-cell competition for EphBs. eLife. 2019;8. doi:10.7554/eLife.41563 apa: Henderson, N. T., Le Marchand, S. J., Hruska, M., Hippenmeyer, S., Luo, L., & Dalva, M. B. (2019). Ephrin-B3 controls excitatory synapse density through cell-cell competition for EphBs. ELife. eLife Sciences Publications. https://doi.org/10.7554/eLife.41563 chicago: Henderson, Nathan T., Sylvain J. Le Marchand, Martin Hruska, Simon Hippenmeyer, Liqun Luo, and Matthew B. Dalva. “Ephrin-B3 Controls Excitatory Synapse Density through Cell-Cell Competition for EphBs.” ELife. eLife Sciences Publications, 2019. https://doi.org/10.7554/eLife.41563. ieee: N. T. Henderson, S. J. Le Marchand, M. Hruska, S. Hippenmeyer, L. Luo, and M. B. Dalva, “Ephrin-B3 controls excitatory synapse density through cell-cell competition for EphBs,” eLife, vol. 8. eLife Sciences Publications, 2019. ista: Henderson NT, Le Marchand SJ, Hruska M, Hippenmeyer S, Luo L, Dalva MB. 2019. Ephrin-B3 controls excitatory synapse density through cell-cell competition for EphBs. eLife. 8, e41563. mla: Henderson, Nathan T., et al. “Ephrin-B3 Controls Excitatory Synapse Density through Cell-Cell Competition for EphBs.” ELife, vol. 8, e41563, eLife Sciences Publications, 2019, doi:10.7554/eLife.41563. short: N.T. Henderson, S.J. Le Marchand, M. Hruska, S. Hippenmeyer, L. Luo, M.B. Dalva, ELife 8 (2019). date_created: 2019-03-10T22:59:20Z date_published: 2019-02-21T00:00:00Z date_updated: 2023-08-24T14:50:50Z day: '21' ddc: - '570' department: - _id: SiHi doi: 10.7554/eLife.41563 external_id: isi: - '000459380600001' pmid: - '30789343' file: - access_level: open_access checksum: 7b0800d003f14cd06b1802dea0c52941 content_type: application/pdf creator: dernst date_created: 2019-03-11T16:15:37Z date_updated: 2020-07-14T12:47:19Z file_id: '6098' file_name: 2019_eLife_Henderson.pdf file_size: 7260753 relation: main_file file_date_updated: 2020-07-14T12:47:19Z has_accepted_license: '1' intvolume: ' 8' isi: 1 language: - iso: eng month: '02' oa: 1 oa_version: Published Version pmid: 1 publication: eLife publication_status: published publisher: eLife Sciences Publications quality_controlled: '1' scopus_import: '1' status: public title: Ephrin-B3 controls excitatory synapse density through cell-cell competition for EphBs 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: 8 year: '2019' ... --- _id: '6046' abstract: - lang: eng text: Sudden stress often triggers diverse, temporally structured gene expression responses in microbes, but it is largely unknown how variable in time such responses are and if genes respond in the same temporal order in every single cell. Here, we quantified timing variability of individual promoters responding to sublethal antibiotic stress using fluorescent reporters, microfluidics, and time‐lapse microscopy. We identified lower and upper bounds that put definite constraints on timing variability, which varies strongly among promoters and conditions. Timing variability can be interpreted using results from statistical kinetics, which enable us to estimate the number of rate‐limiting molecular steps underlying different responses. We found that just a few critical steps control some responses while others rely on dozens of steps. To probe connections between different stress responses, we then tracked the temporal order and response time correlations of promoter pairs in individual cells. Our results support that, when bacteria are exposed to the antibiotic nitrofurantoin, the ensuing oxidative stress and SOS responses are part of the same causal chain of molecular events. In contrast, under trimethoprim, the acid stress response and the SOS response are part of different chains of events running in parallel. Our approach reveals fundamental constraints on gene expression timing and provides new insights into the molecular events that underlie the timing of stress responses. acknowledged_ssus: - _id: Bio article_number: e8470 article_processing_charge: No author: - first_name: Karin full_name: Mitosch, Karin id: 39B66846-F248-11E8-B48F-1D18A9856A87 last_name: Mitosch - first_name: Georg full_name: Rieckh, Georg id: 34DA8BD6-F248-11E8-B48F-1D18A9856A87 last_name: Rieckh - first_name: Mark Tobias full_name: Bollenbach, Mark Tobias id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87 last_name: Bollenbach orcid: 0000-0003-4398-476X citation: ama: Mitosch K, Rieckh G, Bollenbach MT. Temporal order and precision of complex stress responses in individual bacteria. Molecular systems biology. 2019;15(2). doi:10.15252/msb.20188470 apa: Mitosch, K., Rieckh, G., & Bollenbach, M. T. (2019). Temporal order and precision of complex stress responses in individual bacteria. Molecular Systems Biology. Embo Press. https://doi.org/10.15252/msb.20188470 chicago: Mitosch, Karin, Georg Rieckh, and Mark Tobias Bollenbach. “Temporal Order and Precision of Complex Stress Responses in Individual Bacteria.” Molecular Systems Biology. Embo Press, 2019. https://doi.org/10.15252/msb.20188470. ieee: K. Mitosch, G. Rieckh, and M. T. Bollenbach, “Temporal order and precision of complex stress responses in individual bacteria,” Molecular systems biology, vol. 15, no. 2. Embo Press, 2019. ista: Mitosch K, Rieckh G, Bollenbach MT. 2019. Temporal order and precision of complex stress responses in individual bacteria. Molecular systems biology. 15(2), e8470. mla: Mitosch, Karin, et al. “Temporal Order and Precision of Complex Stress Responses in Individual Bacteria.” Molecular Systems Biology, vol. 15, no. 2, e8470, Embo Press, 2019, doi:10.15252/msb.20188470. short: K. Mitosch, G. Rieckh, M.T. Bollenbach, Molecular Systems Biology 15 (2019). date_created: 2019-02-24T22:59:18Z date_published: 2019-02-14T00:00:00Z date_updated: 2023-08-24T14:49:53Z day: '14' department: - _id: GaTk doi: 10.15252/msb.20188470 external_id: isi: - '000459628300003' pmid: - '30765425' intvolume: ' 15' isi: 1 issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ncbi.nlm.nih.gov/pubmed/30765425 month: '02' oa: 1 oa_version: Submitted Version pmid: 1 project: - _id: 25E9AF9E-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: P27201-B22 name: Revealing the mechanisms underlying drug interactions - _id: 25EB3A80-B435-11E9-9278-68D0E5697425 grant_number: RGP0042/2013 name: Revealing the fundamental limits of cell growth publication: Molecular systems biology publication_status: published publisher: Embo Press quality_controlled: '1' scopus_import: '1' status: public title: Temporal order and precision of complex stress responses in individual bacteria type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 15 year: '2019' ... --- _id: '6105' abstract: - lang: eng text: " Hosts can alter their strategy towards pathogens during their lifetime; that is, they can show phenotypic plasticity in immunity or life history. Immune priming is one such example, where a previous encounter with a pathogen confers enhanced protection upon secondary challenge, resulting in reduced pathogen load (i.e., resistance) and improved host survival. However, an initial encounter might also enhance tolerance, particularly to less virulent opportunistic pathogens that establish persistent infections. In this scenario, individuals are better able to reduce the negative fecundity consequences that result from a high pathogen burden. Finally, previous exposure may also lead to life‐history adjustments, such as terminal investment into reproduction.\r\n Using different Drosophila melanogaster host genotypes and two bacterial pathogens, Lactococcus lactis and Pseudomonas entomophila, we tested whether previous exposure results in resistance or tolerance and whether it modifies immune gene expression during an acute‐phase infection (one day post‐challenge). We then asked whether previous pathogen exposure affects chronic‐phase pathogen persistence and longer‐term survival (28 days post‐challenge).\r\n \ We predicted that previous exposure would increase host resistance to an early stage bacterial infection while it might come at a cost to host fecundity tolerance. We reasoned that resistance would be due in part to stronger immune gene expression after challenge. We expected that previous exposure would improve long‐term survival, that it would reduce infection persistence, and we expected to find genetic variation in these responses.\r\n We found that previous exposure to P. entomophila weakened host resistance to a second infection independent of genotype and had no effect on immune gene expression. Fecundity tolerance showed genotypic variation but was not influenced by previous exposure. However, L. lactis persisted as a chronic infection, whereas survivors cleared the more pathogenic P. entomophila infection.\r\n \ To our knowledge, this is the first study that addresses host tolerance to bacteria in relation to previous exposure, taking a multi‐faceted approach to address the topic. Our results suggest that previous exposure comes with transient costs to resistance during the early stage of infection in this host–pathogen system and that infection persistence may be bacterium‐specific.\r\n" article_processing_charge: No article_type: original author: - first_name: Megan full_name: Kutzer, Megan id: 29D0B332-F248-11E8-B48F-1D18A9856A87 last_name: Kutzer orcid: 0000-0002-8696-6978 - first_name: Joachim full_name: Kurtz, Joachim last_name: Kurtz - first_name: Sophie A.O. full_name: Armitage, Sophie A.O. last_name: Armitage citation: ama: Kutzer M, Kurtz J, Armitage SAO. A multi-faceted approach testing the effects of previous bacterial exposure on resistance and tolerance. Journal of Animal Ecology. 2019;88(4):566-578. doi:10.1111/1365-2656.12953 apa: Kutzer, M., Kurtz, J., & Armitage, S. A. O. (2019). A multi-faceted approach testing the effects of previous bacterial exposure on resistance and tolerance. Journal of Animal Ecology. Wiley. https://doi.org/10.1111/1365-2656.12953 chicago: Kutzer, Megan, Joachim Kurtz, and Sophie A.O. Armitage. “A Multi-Faceted Approach Testing the Effects of Previous Bacterial Exposure on Resistance and Tolerance.” Journal of Animal Ecology. Wiley, 2019. https://doi.org/10.1111/1365-2656.12953. ieee: M. Kutzer, J. Kurtz, and S. A. O. Armitage, “A multi-faceted approach testing the effects of previous bacterial exposure on resistance and tolerance,” Journal of Animal Ecology, vol. 88, no. 4. Wiley, pp. 566–578, 2019. ista: Kutzer M, Kurtz J, Armitage SAO. 2019. A multi-faceted approach testing the effects of previous bacterial exposure on resistance and tolerance. Journal of Animal Ecology. 88(4), 566–578. mla: Kutzer, Megan, et al. “A Multi-Faceted Approach Testing the Effects of Previous Bacterial Exposure on Resistance and Tolerance.” Journal of Animal Ecology, vol. 88, no. 4, Wiley, 2019, pp. 566–78, doi:10.1111/1365-2656.12953. short: M. Kutzer, J. Kurtz, S.A.O. Armitage, Journal of Animal Ecology 88 (2019) 566–578. date_created: 2019-03-17T22:59:15Z date_published: 2019-04-01T00:00:00Z date_updated: 2023-08-25T08:04:53Z day: '01' ddc: - '570' department: - _id: SyCr doi: 10.1111/1365-2656.12953 ec_funded: 1 external_id: isi: - '000467994800007' file: - access_level: open_access checksum: 405cde15120de26018b3bd0dfa29986c content_type: application/pdf creator: dernst date_created: 2019-03-18T07:43:06Z date_updated: 2020-07-14T12:47:19Z file_id: '6107' file_name: 2019_JournalAnimalEcology_Kutzer.pdf file_size: 1460662 relation: main_file file_date_updated: 2020-07-14T12:47:19Z has_accepted_license: '1' intvolume: ' 88' isi: 1 issue: '4' language: - iso: eng month: '04' oa: 1 oa_version: Published Version page: 566-578 project: - _id: 25681D80-B435-11E9-9278-68D0E5697425 call_identifier: FP7 grant_number: '291734' name: International IST Postdoc Fellowship Programme publication: Journal of Animal Ecology publication_identifier: eissn: - '13652656' issn: - '00218790' publication_status: published publisher: Wiley quality_controlled: '1' related_material: record: - id: '9806' relation: research_data status: public scopus_import: '1' status: public title: A multi-faceted approach testing the effects of previous bacterial exposure on resistance and tolerance 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: 88 year: '2019' ...