Phenotypic sexual dimorphism is associated with genomic signatures of resolved sexual conflict.

ABSTRACT: Intralocus sexual conflict, where an allele benefits one sex at the expense of the other, has an important role in shaping genetic diversity of populations through balancing selection. However, the potential for mating systems to exert balancing selection through sexual conflict on the genome remains unclear. Furthermore, the nature and potential for resolution of sexual conflict across the genome has been hotly debated. To address this, we analysed de novo transcriptomes from six avian species, chosen to reflect the full range of sexual dimorphism and mating systems. Our analyses combine expression and population genomic statistics across reproductive and somatic tissue, with measures of sperm competition and promiscuity. Our results reveal that balancing selection is weakest in the gonad

SUBMITTER: Wright AE 

PROVIDER: S-EPMC6618015 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature