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Metapopulation structure modulates sexual antagonism

Citation

Rodriguez-Exposito, Eduardo; Garcia-Gonzalez, Francisco (2021), Metapopulation structure modulates sexual antagonism, Dryad, Dataset, https://doi.org/10.5061/dryad.r2280gbd9

Abstract

Despite the far-reaching evolutionary implications of sexual conflict, the effects of metapopulation structure, when populations are subdivided into several demes connected to some degree by migration, on sexual conflict dynamics are unknown. Here, we used experimental evolution in an insect model system, the seed beetle Callosobruchus maculatus, to assess the independent and interacting effects of selection histories associated with mating system (monogamy vs. polygamy) and population subdivision on sexual conflict evolution. We confirm traditional predictions from sexual conflict theory by revealing increased resistance to male harm in females from populations with a history of intense sexual selection (polygamous populations) compared to females from populations with a history of relaxed sexual selection (monogamous populations). However, selection arising from metapopulation structure reversed the classic pattern of sexually antagonistic coevolution and led to reduced resistance in females from polygamous populations. These results underscore that population spatial structure moderates sexual selection and sexual conflict, and more broadly, that the evolution of sexual conflict is contingent on ecological context. The findings also have implications for population dynamics, conservation biology and biological control.

Usage Notes

Explanations are given in the files and further information is provided in the Appendix of the study (available online together with the article), and in the article.

Funding

Spanish Ministry of Economy, Award: CGL2012-34685

Spanish Ministry of Science, Innovation and Universities, Award: CGL2016-76173-P

Spanish Ministry of Science, Innovation and Universities, Award: PID2019-105547GB-I00

Spanish Research Council, Award: 201730I034

Spanish Ministry of Economy, Award: BES‐2013‐065192

Spanish Ministry of Economy, Award: CGL2012-34685

Spanish Research Council, Award: 201730I034