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Rapid changes in genetic architecture of behavioural syndromes following colonization of a novel environment.

Karlsson Green, K; Eroukhmanoff, F; Harris, S; Pettersson, Lars LU and Svensson, Erik LU (2016) In Journal of Evolutionary Biology 29(1). p.144-152
Abstract
Behavioural syndromes, that is correlated behaviours, may be a result from adaptive correlational selection, but in a new environmental setting, the trait correlation might act as an evolutionary constraint. However, knowledge about the quantitative genetic basis of behavioural syndromes, and the stability and evolvability of genetic correlations under different ecological conditions, is limited. We investigated the quantitative genetic basis of correlated behaviours in the freshwater isopod Asellus aquaticus. In some Swedish lakes, A. aquaticus has recently colonized a novel habitat and diverged into two ecotypes, presumably due to habitat-specific selection from predation. Using a common garden approach and animal model analyses, we... (More)
Behavioural syndromes, that is correlated behaviours, may be a result from adaptive correlational selection, but in a new environmental setting, the trait correlation might act as an evolutionary constraint. However, knowledge about the quantitative genetic basis of behavioural syndromes, and the stability and evolvability of genetic correlations under different ecological conditions, is limited. We investigated the quantitative genetic basis of correlated behaviours in the freshwater isopod Asellus aquaticus. In some Swedish lakes, A. aquaticus has recently colonized a novel habitat and diverged into two ecotypes, presumably due to habitat-specific selection from predation. Using a common garden approach and animal model analyses, we estimated quantitative genetic parameters for behavioural traits and compared the genetic architecture between the ecotypes. We report that the genetic covariance structure of the behavioural traits has been altered in the novel ecotype, demonstrating divergence in behavioural correlations. Thus, our study confirms that genetic correlations behind behaviours can change rapidly in response to novel selective environments. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Evolutionary Biology
volume
29
issue
1
pages
144 - 152
publisher
John Wiley & Sons
external identifiers
  • pmid:26427029
  • wos:000368074900011
  • scopus:84953366847
ISSN
1420-9101
DOI
10.1111/jeb.12769
language
English
LU publication?
yes
id
8d0647d0-36d1-4f7b-8d14-cfba667a9a94 (old id 8159324)
date added to LUP
2015-11-11 14:11:16
date last changed
2017-01-22 03:10:43
@article{8d0647d0-36d1-4f7b-8d14-cfba667a9a94,
  abstract     = {Behavioural syndromes, that is correlated behaviours, may be a result from adaptive correlational selection, but in a new environmental setting, the trait correlation might act as an evolutionary constraint. However, knowledge about the quantitative genetic basis of behavioural syndromes, and the stability and evolvability of genetic correlations under different ecological conditions, is limited. We investigated the quantitative genetic basis of correlated behaviours in the freshwater isopod Asellus aquaticus. In some Swedish lakes, A. aquaticus has recently colonized a novel habitat and diverged into two ecotypes, presumably due to habitat-specific selection from predation. Using a common garden approach and animal model analyses, we estimated quantitative genetic parameters for behavioural traits and compared the genetic architecture between the ecotypes. We report that the genetic covariance structure of the behavioural traits has been altered in the novel ecotype, demonstrating divergence in behavioural correlations. Thus, our study confirms that genetic correlations behind behaviours can change rapidly in response to novel selective environments.},
  author       = {Karlsson Green, K and Eroukhmanoff, F and Harris, S and Pettersson, Lars and Svensson, Erik},
  issn         = {1420-9101},
  language     = {eng},
  number       = {1},
  pages        = {144--152},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Evolutionary Biology},
  title        = {Rapid changes in genetic architecture of behavioural syndromes following colonization of a novel environment.},
  url          = {http://dx.doi.org/10.1111/jeb.12769},
  volume       = {29},
  year         = {2016},
}