Genetic linkage and natural selection

N.H. Barton, Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 365 (2010) 2559–2569.

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Journal Article | Published | English
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Abstract
The prevalence of recombination in eukaryotes poses one of the most puzzling questions in biology. The most compelling general explanation is that recombination facilitates selection by breaking down the negative associations generated by random drift (i.e. Hill-Robertson interference, HRI). I classify the effects of HRI owing to: deleterious mutation, balancing selection and selective sweeps on: neutral diversity, rates of adaptation and the mutation load. These effects are mediated primarily by the density of deleterious mutations and of selective sweeps. Sequence polymorphism and divergence suggest that these rates may be high enough to cause significant interference even in genomic regions of high recombination. However, neither seems able to generate enough variance in fitness to select strongly for high rates of recombination. It is plausible that spatial and temporal fluctuations in selection generate much more fitness variance, and hence selection for recombination, than can be explained by uniformly deleterious mutations or species-wide selective sweeps.
Publishing Year
Date Published
2010-08-27
Journal Title
Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
Acknowledgement
Royal Society and Wolfson Foundation for their support We would like to thank Brian Charlesworth and Sally Otto for their helpful comments.
Volume
365
Issue
1552
Page
2559 - 2569
IST-REx-ID

Cite this

Barton NH. Genetic linkage and natural selection. Philosophical Transactions of the Royal Society of London Series B, Biological Sciences. 2010;365(1552):2559-2569. doi:10.1098/rstb.2010.0106
Barton, N. H. (2010). Genetic linkage and natural selection. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 365(1552), 2559–2569. https://doi.org/10.1098/rstb.2010.0106
Barton, Nicholas H. “Genetic Linkage and Natural Selection.” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences 365, no. 1552 (2010): 2559–69. https://doi.org/10.1098/rstb.2010.0106.
N. H. Barton, “Genetic linkage and natural selection,” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, vol. 365, no. 1552, pp. 2559–2569, 2010.
Barton NH. 2010. Genetic linkage and natural selection. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences. 365(1552), 2559–2569.
Barton, Nicholas H. “Genetic Linkage and Natural Selection.” Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, vol. 365, no. 1552, Royal Society, 2010, pp. 2559–69, doi:10.1098/rstb.2010.0106.
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