Assessing putative interlocus sexual conflict in Drosophila melanogaster using experimental evolution

Stewart, Andrew D, Morrow, Edward H and Rice, William R (2005) Assessing putative interlocus sexual conflict in Drosophila melanogaster using experimental evolution. Proceedings of the Royal Society B: Biological Sciences, 272 (1576). pp. 2029-2035. ISSN 0962-8452

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Abstract

The theoretical foundation of sexually antagonistic coevolution is that females suffer a net fitness cost through their interactions with males. The empirical prediction is that direct costs to female lifetime fecundity will exceed indirect benefits despite a possible increase in the genetic quality of offspring. Although direct costs of males have been repeatedly shown, to date no study has comprehensively tested whether females are compensated for this direct harm through indirect benefits. Here we use experimental evolution to show that a mutation giving Drosophila melanogaster females nearly complete resistance to the direct costs of male courtship and remating, but which also excluded almost all indirect benefits, is strongly favoured by selection. We estimated the selection coefficient favouring the resistance allele to be +20%. These results demonstrate that any indirect benefits that females accrued were not sufficient to counter-balance the direct costs of males, and reinforce a large body of past studies by verifying interlocus sexual conflict in this model system

Item Type: Article
Schools and Departments: School of Life Sciences > Evolution, Behaviour and Environment
Subjects: Q Science > QH Natural history > QH0301 Biology > QH0359 Evolution
Depositing User: Ted Morrow
Date Deposited: 12 Nov 2012 12:08
Last Modified: 12 Nov 2012 12:08
URI: http://sro.sussex.ac.uk/id/eprint/40266
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