liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Domestication-From behaviour to genes and back again
Linköping University, Department of Physics, Chemistry and Biology, Zoology . Linköping University, The Institute of Technology.
2006 (English)In: Applied Animal Behaviour Science, ISSN 0168-1591, Vol. 97, no 1, 3-15 p.Article in journal (Refereed) Published
Abstract [en]

During domestication, animals have adapted with respect to behaviour and an array of other traits. This tends to give rise to a specific domestication phenotype, involving similar changes in colour, size, physiology and behaviour among different species. Hence, domestication offers a model for understanding the genetic mechanisms involved in the trade-off between behaviour and other traits in response to selection. We compared the behaviour and other phenotypic traits of junglefowl and white leghorn layers, selected for egg production (and indirectly for growth). To examine the genetic mechanisms underlying the domestication-related differences, we carried out a genome scan for quantitative trait loci (QTLs) affecting behaviour and production traits in F2-birds of a junglefowl×white leghorn intercross. Several significant or suggestive QTLs for different production traits were located and some of these coincided with QTLs for behaviour, suggesting that QTLs with pleiotropic effects (or closely linked QTLs) may be important for the development of domestication phenotypes. Two genes and their causative mutations for plumage colouration have been identified, and one of these has a strong effect on the risk of being a victim of feather pecking, a detrimental behaviour disorder. It is likely that fast and large evolutionary changes in many traits simultaneously may be caused by mutations in regulatory genes, causing differences in gene expression orchestration. Modern genomics paired with analysis of behaviour may offer a route for understanding the relation between behaviour and production and predicting possible side-effects of breeding programs.

Place, publisher, year, edition, pages
2006. Vol. 97, no 1, 3-15 p.
National Category
Natural Sciences
URN: urn:nbn:se:liu:diva-36487DOI: 10.1016/j.applanim.2005.11.015Local ID: 31440OAI: diva2:257335
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2010-04-20

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Jensen, Per
By organisation
Zoology The Institute of Technology
In the same journal
Applied Animal Behaviour Science
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 115 hits
ReferencesLink to record
Permanent link

Direct link