Trans regulation of an odorant binding protein by a proto-Y chromosome affects male courtship in house fly.

ABSTRACT: The male-limited inheritance of Y chromosomes favors alleles that increase male fitness, often at the expense of female fitness. Determining the mechanisms underlying these sexually antagonistic effects is challenging because it can require studying Y-linked alleles while they still segregate as polymorphisms. We used a Y chromosome polymorphism in the house fly, Musca domestica, to address this challenge. Two male determining Y chromosomes (Y^M and III^M) segregate as stable polymorphisms in natural populations, and they differentially affect multiple traits, including male courtship performance. We identified differentially expressed genes encoding odorant binding proteins (in the Obp56h family) as candidate agents for the courtship differences. Through

SUBMITTER: Delclos PJ 

PROVIDER: S-EPMC11488852 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature