Genetic correlation between resting metabolic rate and exploratory behaviour in deer mice (Peromyscus maniculatus)

Careau, V., Thomas, D., Pelletier, F., Turki, L., Landry, F., Garant, D. and Reale, D. 2011, Genetic correlation between resting metabolic rate and exploratory behaviour in deer mice (Peromyscus maniculatus), Journal of evolutionary biology, vol. 24, no. 10, pp. 2153-2163, doi: 10.1111/j.1420-9101.2011.02344.x.

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Title Genetic correlation between resting metabolic rate and exploratory behaviour in deer mice (Peromyscus maniculatus)
Author(s) Careau, V.
Thomas, D.
Pelletier, F.
Turki, L.
Landry, F.
Garant, D.
Reale, D.
Journal name Journal of evolutionary biology
Volume number 24
Issue number 10
Start page 2153
End page 2163
Total pages 11
Publisher Wiley
Place of publication London, England
Publication date 2011-10
ISSN 1010-061X
Keyword(s) basal metabolic rate
energy expenditure
genetic covariance
permanent environment effect
Summary According to the ‘pace-of-life’ syndrome hypothesis, differences in resting metabolic rate (RMR) should be genetically associated with exploratory behaviour. A large number of studies reported significant heritability for both RMR and exploratory behaviour, but the genetic correlation between the two has yet to be documented. We used a quantitative genetic approach to decompose the phenotypic (co)variance of several metabolic and behavioural measures into components of additive genetic, common environment and permanent environment variance in captive deer mice. We found significant additive genetic variance for two mass-independent metabolic measures (RMR and the average metabolic rate throughout the respirometry run) and two behavioural measures (time spent in centre and distance moved in a novel environment). We also detected positive additive genetic correlation between mass-independent RMR and distance moved (rA = 0.78 ± 0.23). Our results suggest that RMR and exploratory behaviour are functionally integrated traits in deer mice, providing empirical support for one of the connections within the pace-of-life syndrome hypothesis.
Language eng
DOI 10.1111/j.1420-9101.2011.02344.x
Field of Research 059999 Environmental Sciences not elsewhere classified
Socio Economic Objective 970105 Expanding Knowledge in the Environmental Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2011, Wiley
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