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Title: Androgen receptor gene polymorphism in zebra species
Authors: Ito, Hideyuki
Langenhorst, Tanya
Ogden, Rob
Inoue-Murayama, Miho
Author's alias: 村山, 美穂
Keywords: Zebra
Androgen receptor
Issue Date: Sep-2015
Publisher: Elsevier B.V.
Journal title: Meta gene
Volume: 5
Start page: 120
End page: 123
Abstract: Androgen receptor genes (AR) have been found to have associations with reproductive development, behavioral traits, and disorders in humans. However, the influence of similar genetic effects on the behavior of other animals is scarce. We examined the loci AR glutamine repeat (ARQ) in 44 Grevy's zebras, 23 plains zebras, and three mountain zebras, and compared them with those of domesticated horses. We observed polymorphism among zebra species and between zebra and horse. As androgens such as testosterone influence aggressiveness, AR polymorphism among equid species may be associated with differences in levels of aggression and tameness. Our findings indicate that it would be useful to conduct further studies focusing on the potential association between AR and personality traits, and to understand domestication of equid species.
Rights: © 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (
DOI(Published Version): 10.1016/j.mgene.2015.06.006
PubMed ID: 26236645
Appears in Collections:Journal Articles

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