2005
DOI: 10.1111/j.0014-3820.2005.tb01829.x
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QUANTITATIVE GENETICS OF BIOENERGETICS AND GROWTH‐RELATED TRAITS IN THE WILD MAMMAL,PHYLLOTIS DARWINI

Abstract: We studied the potential for response to selection in typical physiological-thermoregulatory traits of mammals such as maximum metabolic rate (MMR), nonshivering thermogenesis (NST) and basal metabolic rate (BMR) on cold-acclimated animals. We used an animal model approach to estimate both narrow-sense heritabilities (h 2 ) and genetic correlations between physiological and growth-related traits. Univariate analyses showed that MMR presented high, significant heritability (h 2 ϭ 0.69 Ϯ 0.35, asymptotic standar… Show more

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Cited by 47 publications
(61 citation statements)
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“…Hence, the strong form of this model should be tested at the genetic level in birds and mammals. Although the r A between BMR and MMR has been tested several times in mammals (Gębczyński and Konarzewski, 2009;Nespolo et al, 2005;Sadowska et al, 2005;Wone et al, 2009), it has never been tested in birds, which leaves an incomplete knowledge of one of the most significant developments in vertebrate evolution. (A) The first model was run using a homogeneous variance structure across the entire dataset (60 individuals measured five times each; total N=300).…”
Section: Resultsmentioning
confidence: 99%
“…Hence, the strong form of this model should be tested at the genetic level in birds and mammals. Although the r A between BMR and MMR has been tested several times in mammals (Gębczyński and Konarzewski, 2009;Nespolo et al, 2005;Sadowska et al, 2005;Wone et al, 2009), it has never been tested in birds, which leaves an incomplete knowledge of one of the most significant developments in vertebrate evolution. (A) The first model was run using a homogeneous variance structure across the entire dataset (60 individuals measured five times each; total N=300).…”
Section: Resultsmentioning
confidence: 99%
“…Quantitative genetic analyses of BMR can inform us about the evolvability of the trait by providing estimates of both narrow-sense heritability (h 2 ) and of genetic correlations with other behavioural or morphological traits that may constrain the ability of BMR to respond to selection. Despite being one of the most widely measured physiological traits, there are relatively few studies to date that have explicitly investigated the heritability of BMR, and even fewer that have attempted to estimate genetic correlations between BMR and other traits (but see Nespolo et al, 2005;Rønning et al, 2007;Gebczynski and Konarzewski, 2009;Nilsson et al, 2009;Tieleman et al, 2009;Wone et al, 2009;Careau et al, 2011;Bushuev et al, 2012). Furthermore, these studies have produced conflicting results.…”
Section: Introductionmentioning
confidence: 99%
“…For instance, in Drosophila heat resistance, desiccation resistance and starvation are classified as physiological traits but h 2 ranges from 0.18 to 0.9 with considerable variation across studies (Hoffman, 2000). Similarly in mammals, body temperature, thermal conductance and basal metabolic rate exhibit a 100% variation in heritabilities (Nespolo et al, 2003(Nespolo et al, , 2005.…”
Section: Introductionmentioning
confidence: 99%