Abstract

We studied personality, subjective well-being, and hair cortisol level, in common marmosets Callithrix jacchus, a small, cooperatively breeding New World monkey, by examining their associations with one another and genotypes. Subjects were 68 males and 9 females that lived in the RIKEN Center for Life Science Technologies. Personality and subjective well-being were assessed by keeper ratings on two questionnaires, hair samples were obtained to assay cortisol level and buccal swabs were used to assess AVPR1a, OPRM1 and DAT genotypes. Three personality domains—Dominance, Sociability, and Neuroticism—were identified. Consistent with findings in other species, Sociability and Neuroticism were related to higher and lower subjective well-being, respectively. Sociability was also associated with higher hair cortisol levels. The personality domains and hair cortisol levels were heritable and associated with genotypes: the short form of AVPR1a was associated with lower Neuroticism and the AA genotype of the A111T SNP of OPRM1 was related to lower Dominance, lower Neuroticism, and higher hair cortisol level. Some genetic associations were not in directions that one would expect given findings in other species. These findings provide insights into the proximate and ultimate bases of personality in common marmosets, other primates and humans.

Details

Title
Common marmoset (Callithrix jacchus) personality, subjective well-being, hair cortisol level and AVPR1a, OPRM1, and DAT genotypes
Author
Inoue-Murayama, Miho 1 ; Yokoyama, Chihiro 2 ; Yamanashi, Yumi 3 ; Weiss, Alexander 4   VIAFID ORCID Logo 

 Wildlife Research Center of Kyoto University, Kyoto, Japan; Wildlife Genome Collaborative Research Group, National Institute for Environmental Studies, Tsukuba, Japan 
 Laboratory for Brain Connectomics Imaging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan 
 Center for Research and Education of Wildlife, Kyoto City Zoo, Kyoto, Japan; Wildlife Research Center of Kyoto University, Kyoto, Japan 
 School of Philosophy, Psychology and Language Sciences, Department of Psychology, The University of Edinburgh, Edinburgh, United Kingdom; Scottish Primate Research Group, Edinburgh, United Kingdom 
Pages
1-15
Publication year
2018
Publication date
Jul 2018
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2065386235
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.