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The X chromosome is found twice as often in females as males. This has led to an intuition that X‐linked genes for traits experiencing sexually antagonistic selection should tend to evolve toward the female optimum. However, this intuition has never been formally examined. In this paper, I present a simple mathematical model and ask whether the X chromosome is indeed biased toward effecting female‐optimal...
Sexual antagonism and meiotic drive are sex‐specific evolutionary forces with the potential to shape genomic architecture. Previous theory has found that pairing two sexually antagonistic loci or combining sexual antagonism with meiotic drive at linked autosomal loci augments genetic variation, produces stable linkage disequilibrium (LD) and favours reduced recombination. However, the influence of...
Theory suggests that genetic conflicts drive turnovers between sex‐determining mechanisms, yet these studies only apply to cases where sex allocation is independent of environment or condition. Here, we model parent–offspring conflict in the presence of condition‐dependent sex allocation, where the environment has sex‐specific fitness consequences. Additionally, one sex is assumed to be more costly...
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