Conserved transcriptomic profiles underpin monogamy across vertebrates.

摘要: Social monogamy, typically characterized by the formation of a pair bond, increased territorial defense, and often biparental care, has independently evolved multiple times in animals. Despite independent evolutionary origins monogamous mating systems, several homologous brain regions neuropeptides their receptors have been shown to play conserved role regulating social affiliation parental but little is known about neuromolecular mechanisms underlying monogamy on genomic scale. Here, we compare neural transcriptomes reproductive males nonmonogamous species pairs Peromyscus mice, Microtus voles, parid songbirds, dendrobatid frogs, Xenotilapia cichlid fishes. We find that, while divergence time between or clades did not explain gene expression similarity, characteristics system correlated with patterns, varied concordantly across vertebrates when transition monogamy. Our study provides evidence universal transcriptomic mechanism evolution vertebrates.