Searching for signatures of sexually antagonistic selection on stickleback sex chromosomes

• DOI: 10.1098/rstb.2021.0205
• Publication Date: 2022-06-13T07:06:43Z
• Authors: Andrius J. Dagilis; Jason M. Sardell; Matthew P. Josephson; Yiheng Su; Mark Kirkpatrick; Catherine L. Peichel
• Keywords: Genetic architecture

Intralocus sexually antagonistic selection occurs when an allele is beneficial to one sex but detrimental the other. This form of thought be key evolution chromosomes hard detect. Here we perform analysis phased young look for signals in Japan Sea stickleback (Gasterosteus nipponicus). Phasing allows us date suppression recombination on chromosome and provides unprecedented resolution identify recombining region chromosome. We four windows with elevated divergence between X Y region, all or very near genes associated phenotypes potentially under humans. are unable, however, rule out alternative hypothesis that peaks result from demographic effects. Thus, although a formation supergenes chromosomes, it remains challenging article part theme issue 'Genomic architecture supergenes: causes evolutionary consequences'.