Expression Divergence in Response to Sex-biased Selection.

ABSTRACT: It remains debated whether greater degrees of sexual dimorphism would evolve if not for intersexual genetic constraints. Here, we used experimental evolution to partially break the intersexual genetic constraint in Drosophila melanogaster to investigate the effects of a shared gene pool on the evolution of sexual dimorphism in gene expression. In six replicate populations of 1,000 flies, a dominant marker (DsRed) was used to force a "Red" pool of genetically variable Chromosome 2 copies through exclusive father-to-son inheritance, while a complimentary pool of "NonRed" chromosomes was inherited primarily from mothers to daughters. After 100 generations, we demonstrated the effect of Red male-limited chromosomes in increasing male mating success. Differentially expressed genes between flies

SUBMITTER: Grieshop K 

PROVIDER: S-EPMC12238715 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature