The effects of selection and genetic drift on the genomic distribution of sexually antagonistic alleles.

Details

Serval ID
serval:BIB_F48EE6713BF9
Type
Article: article from journal or magazin.
Collection
Publications
Title
The effects of selection and genetic drift on the genomic distribution of sexually antagonistic alleles.
Journal
Evolution
Author(s)
Mullon C., Pomiankowski A., Reuter M.
ISSN
1558-5646 (Electronic)
ISSN-L
0014-3820
Publication state
Published
Issued date
2012
Peer-reviewed
Oui
Volume
66
Number
12
Pages
3743-3753
Language
english
Abstract
Sexual antagonism (SA) occurs when an allele that is beneficial to one sex, is detrimental to the other. This conflict can result in balancing, directional, or disruptive selection acting on SA alleles. A body of theory predicts the conditions under which sexually antagonistic mutants will invade and be maintained in stable polymorphism under balancing selection. There remains, however, considerable debate over the distribution of SA genetic variation across autosomes and sex chromosomes, with contradictory evidence coming from data and theory. In this article, we investigate how the interplay between selection and genetic drift will affect the genomic distribution of sexually antagonistic alleles. The effective population sizes can differ between the autosomes and the sex chromosomes due to a number of ecological factors and, consequently, the distribution of SA genetic variation in genomes. In general, we predict the interplay of SA selection and genetic drift should lead to the accumulation of SA alleles on the X in male heterogametic (XY) species and, on the autosomes in female heterogametic (ZW) species, especially when sexual competition is strong among males.
Keywords
Alleles, Animals, Female, Genetic Drift, Genetic Variation, Genome, Heterozygote, Male, Models, Genetic, Mutation, Selection, Genetic, Sex Chromosomes
Pubmed
Web of science
Create date
24/01/2013 16:03
Last modification date
20/08/2019 17:21
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