The interpretation of selection coefficients.

Evolution; International Journal of Organic Evolution
N H Barton, Maria R Servedio

Abstract

Evolutionary biologists have an array of powerful theoretical techniques that can accurately predict changes in the genetic composition of populations. Changes in gene frequencies and genetic associations between loci can be tracked as they respond to a wide variety of evolutionary forces. However, it is often less clear how to decompose these various forces into components that accurately reflect the underlying biology. Here, we present several issues that arise in the definition and interpretation of selection and selection coefficients, focusing on insights gained through the examination of selection coefficients in multilocus notation. Using this notation, we discuss how its flexibility-which allows different biological units to be identified as targets of selection-is reflected in the interpretation of the coefficients that the notation generates. In many situations, it can be difficult to agree on whether loci can be considered to be under "direct" versus "indirect" selection, or to quantify this selection. We present arguments for what the terms direct and indirect selection might best encompass, considering a range of issues, from viability and sexual selection to kin selection. We show how multilocus notation can discr...Continue Reading

References

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Jan 22, 2009·Evolution; International Journal of Organic Evolution·Nicholas H Barton, Maria Angeles Rodriguez de Cara
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Citations

Feb 3, 2016·Molecular Ecology·Timothy J Thurman, Rowan D H Barrett
Jan 27, 2019·Genetics·Jingxian LiuPhilipp W Messer
Nov 8, 2017·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Jessica StapleyCarole M Smadja
Apr 25, 2018·Ecology and Evolution·Nan LyuYue-Hua Sun

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