Behavior Genetics and the Domestication of Animals
2014 (English)In: Annual Review of Animal Biosciences, ISSN 2165-8102, E-ISSN 2165-8110, Vol. 2, 85-104 p.Article in journal (Refereed) Published
Across species, a similar suite of traits tends to develop in response todomestication, including modifications in behavior. Reduced fearand increased stress tolerance were central in early domestication,and many domestication-related behaviors may have developed astraits correlated to reduced fear.Genetic mechanisms involved in domesticationof behavior can be investigated by using top-down orbottom-up approaches, either starting from the behavior variationand searching for underlying genes or finding selected loci and thenattempting to identify the associated phenotypes. Combinations ofthese approaches have proven powerful, and examples of resultsfrom such studies are presented and discussed. This includes loci associatedwith tameness in foxes and dogs, as well as loci correlatedwith reduced aggression and increased sociality in chickens. Finally,some examples are provided on epigenetic mechanisms in behavior,and it is suggested that selection of favorable epigenetic variantsmayhave been an important mechanism in domestication.
Place, publisher, year, edition, pages
Annual Reviews , 2014. Vol. 2, 85-104 p.
chicken, dog, pigmentation, fear, neuropeptides, quantitative trait locus, QTL
IdentifiersURN: urn:nbn:se:liu:diva-104757DOI: 10.1146/annurev-animal-022513-114135ISI: 000336052100006OAI: oai:DiVA.org:liu-104757DiVA: diva2:698821