ArticleEvolution; international journal of organic evolution2018
Male-limited secondary sexual trait interacts with environment in determining female fitness.
Article in Evolution; international journal of organic evolution, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 11 citations in OpenAlex.
- Does sexual dimorphism reflect sexual antagonism? Covariation of female fitness with brothers' sexual traits and their female homologues in neriid flies.Proceedings. Biological sciences · 2025Article
- Transcriptomics of differences in thermal plasticity associated with selection for an exaggerated male sexual trait.Heredity · 2024Article
- Sexual conflict in a changing environment.Biological reviews of the Cambridge Philosophical Society · 2021Article
- Sexual selection, environmental robustness, and evolutionary demography of maladapted populations: A test using experimental evolution in seed beetles.Evolutionary applications · 2019Article
- Sexual selection, phenotypic plasticity and female reproductive output.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Review
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Selection for secondary sexual trait (SST) elaboration may increase intralocus sexual conflict over the optimal values of traits expressed from shared genomes. This conflict can reduce female fitness, and the resulting gender load can be exacerbated by environmental stress, with consequences for a population's ability to adapt to novel environments. However, how the evolution of SSTs interacts with environment in determining female fitness is not well understood. Here, we investigated this question using replicate lines of bulb mites selected for increased or decreased prevalence of a male SST-thickened legs used as weapons. The fitness of females from these lines was measured at a temperature to which the mites were adapted (24°C), as well as at two novel temperatures: 18°C and 28°C. We found the prevalence of the SST interacted with temperature in determining female fecundity. At 28°C, females from populations with high SST prevalence were less fecund than females from populations in which the SST was rare, but the reverse was true at 18°C. Thus, a novel environment does not universally depress female fitness more in populations with a high degree of sexually selected dimorphism. We discuss possible consequences of the interaction we detected for adaptation to novel environments.
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