Experimentally induced intrasexual mating competition and sex-specific evolution in female and male nematodes.

ABSTRACT: Sexual dimorphism in life history traits and their trade-offs is widespread among sexually reproducing animals and is strongly influenced by the differences in reproductive strategies between the sexes. We investigated how intrasexual competition influenced specific life history traits, important to fitness and their trade-offs in the outcrossing nematode Caenorhabditis remanei. Here, we altered the strength of sex-specific selection through experimental evolution with increased potential for intrasexual competition by skewing the adult sex ratio towards either females or males (1:10 or 10:1) over 30 generations and subsequently measured the phenotypic response to selection in three traits related to fitness: body size, fecundity and tolerance to heat stress. We observed a greater evolutio

SUBMITTER: Stangberg J 

PROVIDER: S-EPMC7756511 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature