Natural variation at a single gene generates sexual antagonism across fitness components in Drosophila

Bosco Rusuwa, Henry Chung, Scott Allen, Francesca Frentui & Steve Chenoweth
Mutations with conflicting fitness effects in males and females accumulate in sexual populations, reducing their adaptive capacity. Although quantitative genetic studies indicate that sexually antagonistic polymorphisms are common, their molecular basis and population genetic properties remain poorly understood. Here, we show in fruit flies how natural variation at a single gene generates sexual antagonism through phenotypic effects on cuticular hydrocarbon (CHC) traits that function as both mate signals and protectors against abiotic stress across a...
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