A quantitative trait locus analysis of personality in wild bighorn sheep

J. Poissant, D. Réale, J. G. A. Martin, M. Festa-Bianchet, D.W. Coltman

Research output: Contribution to journalArticle

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Abstract

Personality, the presence of persistent behav105 ioral 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.
Original languageEnglish
Pages (from-to)474-481
Number of pages8
JournalEcology and Evolution
Volume3
Issue number3
Early online date18 Jan 2013
DOIs
Publication statusPublished - Mar 2013

Fingerprint

Ovis canadensis
sheep
quantitative trait loci
genetic covariance
disequilibrium
loci
genetic variation
chromosome
fitness
genome
linkage disequilibrium
Alberta
rams
molecular genetics
linkage (genetics)
wildlife
mountain
mountains
Canada
microsatellite repeats

Keywords

  • animal model
  • behavioural syndrome
  • boldness
  • docility
  • heritability
  • temperament

Cite this

Poissant, J., Réale, 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), 474-481. https://doi.org/10.1002/ece3.468

A quantitative trait locus analysis of personality in wild bighorn sheep. / Poissant, J.; Réale, D.; Martin, J. G. A.; Festa-Bianchet, M.; Coltman, D.W.

In: Ecology and Evolution, Vol. 3, No. 3, 03.2013, p. 474-481.

Research output: Contribution to journalArticle

Poissant, J, Réale, D, Martin, JGA, Festa-Bianchet, M & Coltman, DW 2013, 'A quantitative trait locus analysis of personality in wild bighorn sheep', Ecology and Evolution, vol. 3, no. 3, pp. 474-481. https://doi.org/10.1002/ece3.468
Poissant J, Réale D, Martin JGA, Festa-Bianchet M, Coltman DW. A quantitative trait locus analysis of personality in wild bighorn sheep. Ecology and Evolution. 2013 Mar;3(3):474-481. https://doi.org/10.1002/ece3.468
Poissant, J. ; Réale, D. ; Martin, J. G. A. ; Festa-Bianchet, M. ; Coltman, D.W. / A quantitative trait locus analysis of personality in wild bighorn sheep. In: Ecology and Evolution. 2013 ; Vol. 3, No. 3. pp. 474-481.
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