RRC ID 50562
Author Okuyama T, Yokoi S, Takeuchi H.
Title Molecular basis of social competence in medaka fish.
Journal Dev Growth Differ
Abstract Oryzias latipes (Medaka) is an established vertebrate model for studying developmental genetics, genomics, and evolutionary biology. The physiology, embryology, and genetics of this species have been extensively investigated for centuries. Medaka fish recently attracted attention in the field of social neuroscience. This review introduces recent advances in medaka behavioral studies, focusing on female mating preferences and male mate-guarding behaviors. The medaka female has the ability to discriminate male individuals and prefers to mate with socially familiar males (female mating preference). In triadic relationships (two males and one female), the dominant male remains closer to the female and repels the other male (mate-guarding). Interestingly, mate-guarding blocks female social familiarization of the rival male, which can increase the mating success of the dominant male. Importantly, behavioral analyses using a series of medaka mutants revealed critical roles of neuropeptide neuromodulatory systems in regulating their social behaviors. The extra-hypothalamic gonadotropin-releasing hormone system has a central role in activating female mating preference. The arginine-vasotocin system is required for the emergence of mate-guarding behavior.
Volume 59(4)
Pages 211-218
Published 2017-5-1
DOI 10.1111/dgd.12359
PMID 28548230
MeSH Animals Behavior, Animal / physiology Gonadotropin-Releasing Hormone / metabolism Neuropeptides / metabolism Oryzias / metabolism* Oryzias / physiology* Vasotocin / metabolism
IF 1.723
Times Cited 5
Medaka d-rR/TOKYO (MT837) OK-Cab (MT830) Tg(olvas-GFP) (TG870)