Friday seminar: Genomic and quantitative genetic perspectives of sex-specific selection and its evolutionary consequences
By Steve Chenoweth from the University of Queensland, St Lucia, Australia, and the Swedish Collegium for Advanced Studies, Uppsala, Sweden
Males and females often maximise fitness in very different ways and because of this, experience contrasting natural selection that favors the evolution of sexual dimorphism. However, because the sexes share a common genome, pleiotropic constraints arise that can hamper sex-specific adaptation and generate sexual conflicts in the genome. While sexual conflict has now been detected in a broad range of taxa, we know far less about how it manifests at the genomic level. In this seminar, I will share our work that combines classic quantitative genetic tools and genomic methods to study sexual conflict in the fruit fly Drosophila serrata. These include quantitative genetic analyses of male and female gene expression, fine-scale mapping of a sexually antagonistic gene, and a genome-wide association study of the between-sex genetic correlation for fitness using a recently developed panel of 110 resequenced genomes.
The University of Queensland, St Lucia, Australia
Swedish Collegium for Advanced Studies, Uppsala, Sweden