ALTERED FLY RESPONSES. “Both premating and post-mating gene expression profiles of monogamous females were more virgin-like than those of females from polygamous populations. Specifically, genes that are up regulated after mating showed on average lower expression in both virgin and mated monogamous females. The opposite was the case for genes down-regulated after mating (although for virgin females this difference was only marginally significant).”
http://onlinelibrary.wiley.com/doi/10.1111/jeb.12763/full