Rapid evolution of the intersexual genetic correlation for fitness in Drosophila melanogaster.

ABSTRACT: Sexual antagonism (SA) arises when male and female phenotypes are under opposing selection, yet genetically correlated. Until resolved, antagonism limits evolution toward optimal sex-specific phenotypes. Despite its importance for sex-specific adaptation and existing theory, the dynamics of SA resolution are not well understood empirically. Here, we present data from Drosophila melanogaster, compatible with a resolution of SA. We compared two independent replicates of the "LHM " population in which SA had previously been described. Both had been maintained under identical, controlled conditions, and separated for around 200 generations. Although heritabilities of male and female fitness were similar, the intersexual genetic correlation differed significantly, being negative in one replicat

SUBMITTER: Collet JM 

PROVIDER: S-EPMC5069644 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature