Dr. Jacqueline Sztepanacz, Assistant Professor, University of Toronto The evolution of sexual dimorphism over micro- and macro-evolutionary timescales The largely shared genome of males and females leads to genetic covariances between their shared traits. These genetic covariances can have a large effect on the magnitude and distribution of genetic variation within and between the sexes, which may lead to evolutionary constraints when the sexes are subject to divergent selection. In this talk, I will share results showing how the evolvability of sexual dimorphism in contemporary populations is correlated to the evolution of sexual dimorphism over millions of years, suggesting that patterns of genetic variation in contemporary populations can lead to long-lasting evolutionary constraints. I will also share recent research from my group investigating how patterns of natural and sexual selection contribute to this process.
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