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- Title
The genetic basis of emotional behaviour in mice.
- Authors
Willis-Owen, Saffron A G; Flint, Jonathan
- Abstract
The last decade has witnessed a steady expansion in the number of quantitative trait loci (QTL) mapped for complex phenotypes. However, despite this proliferation, the number of successfully cloned QTL has remained surprisingly low, and to a great extent limited to large effect loci. In this review, we follow the progress of one complex trait locus; a low magnitude moderator of murine emotionality identified some 10 years ago in a simple two-strain intercross, and successively resolved using a variety of crosses and fear-related phenotypes. These experiments have revealed a complex underlying genetic architecture, whereby genetic effects fractionate into several separable QTL with some evidence of phenotype specificity. Ultimately, we describe a method of assessing gene candidacy, and show that given sufficient access to genetic diversity and recombination, progression from QTL to gene can be achieved even for low magnitude genetic effects.
- Publication
European journal of human genetics : EJHG, 2006, Vol 14, Issue 6, p721
- ISSN
1018-4813
- Publication type
Journal Article
- DOI
10.1038/sj.ejhg.5201569