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    A quantitative trait locus analysis of personality in wild bighorn sheep

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    Author
    Poissant, J; Reale, D; Martin, JGA; Festa-Bianchet, M; Coltman, DW
    Date
    2013-03-01
    Source Title
    Ecology and Evolution
    Publisher
    WILEY-BLACKWELL
    University of Melbourne Author/s
    Festa-Bianchet, Marco
    Affiliation
    School of BioSciences
    Metadata
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    Document Type
    Journal Article
    Citations
    Poissant, J., Reale, D., Martin, J. G. A., Festa-Bianchet, M. & Coltman, D. W. (2013). A quantitative trait locus analysis of personality in wild bighorn sheep. ECOLOGY AND EVOLUTION, 3 (3), pp.474-481. https://doi.org/10.1002/ece3.468.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/257258
    DOI
    10.1002/ece3.468
    Abstract
    Personality, the presence of persistent behav105ioral differences among individuals over time or contexts, potentially has important ecological and evolutionary consequences. However, a lack of knowledge about its genetic architecture limits our ability to understand its origin, evolution, and maintenance. Here, we report on a genome-wide quantitative trait locus (QTL) analysis for two personality traits, docility and boldness, in free-living female bighorn sheep from Ram Mountain, Alberta, Canada. Our variance component linkage analysis based on 238 microsatellite loci genotyped in 310 pedigreed individuals identified suggestive docility and boldness QTL on sheep chromosome 2 and 6, respectively. A lack of QTL overlap indicated that genetic covariance between traits was not modulated by pleiotropic effects at a major locus and may instead result from linkage disequilibrium or pleiotropic effects at QTL of small effects. To our knowledge, this study represents the first attempt to dissect the genetic architecture of personality in a free-living wildlife population, an important step toward understanding the link between molecular genetic variation in personality and fitness and the evolutionary processes maintaining this variation.

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