Neural correlates of mating system diversity: oxytocin and vasopressin receptor distributions in monogamous and non-monogamous Eulemur.

摘要: Contemporary theory that emphasizes the roles of oxytocin and vasopressin in mammalian sociality has been shaped by seminal vole research revealed interspecific variation neuroendocrine circuitry mating system. However, substantial challenges exist interpreting translating these rodent findings to other groups, including humans, making on nonhuman primates crucial. Both monogamous non-monogamous species within Eulemur, a genus strepsirrhine primate, offering rare opportunity broaden comparative perspective neurocircuitry with increased evolutionary relevance humans. We performed arginine 1a receptor autoradiography 12 Eulemur brains from seven closely related (1) characterize distributions across genus, (2) examine differences between regions part putative "pair-bonding circuits". find some binding patterns reminiscent olfactory-guided rodents, but others congruent more visually oriented anthropoids, consistent lemurs occupying an 'intermediary' niche haplorhine groups. little evidence circuit" akin those proposed previous or primate research. Mapping neuropeptide receptors nontraditional questions existing assumptions informs explanations about biological bases monogamy.