Association between sex ratio distortion and sexually antagonistic fitness consequences of female choice.

ABSTRACT: Genetic variation can be beneficial to one sex yet harmful when expressed in the other-a condition referred to as sexual antagonism. Because X chromosomes are transmitted from fathers to daughters, and sexually antagonistic fitness variation is predicted to often be X-linked, mates of relatively low-fitness males might produce high-fitness daughters whereas mates of high-fitness males produce low-fitness daughters. Such fitness consequences have been predicted to influence the evolution of female mating biases and the offspring sex ratio. Females might evolve to prefer mates that provide good genes for daughters or might adjust offspring sex ratios in favor of the sex with the highest relative fitness. We test these possibilities in a laboratory-adapted population of Drosophila melanogaste

SUBMITTER: Connallon T 

PROVIDER: S-EPMC2778201 | biostudies-literature | 2009 Aug

REPOSITORIES: biostudies-literature