Data/hora: 06/06/2024 06:16:15

Provedor de dados: 	5	
País: 	France	
Título: 	Genetic variability of environmental sensitivity revealed by phenotypic variation in body weight and (its) correlations to physiological and behavioral traits	
Autores: 	Lallias, Delphine; Quillet, Edwige; Begout, Marie-laure; Auperin, Benoit; Khaw, Hooi Ling; Millot, Sandie; Valotaire, Claudiane; Kerneais, Thierry; Labbe, Laurent; Prunet, Patrick; Dupont-nivet, Mathilde.	
Data: 	2017-12	
Ano: 	2017	
Resumo: 	Adaptive phenotypic plasticity is a key component of the ability of organisms to cope with changing environmental conditions. Fish have been shown to exhibit a substantial level of phenotypic plasticity in response to abiotic and biotic factors. In the present study, we investigate the link between environmental sensitivity assessed globally (revealed by phenotypic variation in body weight) and more targeted physiological and behavioral indicators that are generally used to assess the sensitivity of a fish to environmental stressors. We took advantage of original biological material, the rainbow trout isogenic lines, which allowed the disentangling of the genetic and environmental parts of the phenotypic variance. Ten lines were characterized for the changes of body weight variability (weight measurements taken every month during 18 months), the plasma cortisol response to confinement stress (3 challenges) and a set of selected behavioral indicators. This study unambiguously demonstrated the existence of genetic determinism of environmental sensitivity, with some lines being particularly sensitive to environmental fluctuations and others rather insensitive. Correlations between coefficient of variation (CV) for body weight and behavioral and physiological traits were observed. This confirmed that CV for body weight could be used as an indicator of environmental sensitivity. As the relationship between indicators (CV weight, risk-taking, exploration and cortisol) was shown to be likely depending on the nature and intensity of the stressor, the joint use of several indicators should help to investigate the biological complexity of environmental sensitivity.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00416/52769/53631.pdf

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https://archimer.ifremer.fr/doc/00416/52769/53633.pdf

https://archimer.ifremer.fr/doc/00416/52769/53634.pdf

https://archimer.ifremer.fr/doc/00416/52769/53635.pdf

https://archimer.ifremer.fr/doc/00416/52769/53636.pdf

https://archimer.ifremer.fr/doc/00416/52769/53637.pdf

DOI:10.1371/journal.pone.0189943

https://archimer.ifremer.fr/doc/00416/52769/	
Editor: 	Public Library Science	
Formato: 	application/pdf	
Fonte: 	Plos One (1932-6203) (Public Library Science), 2017-12 , Vol. 12 , N. 12 , P. e0189943 (1-9)	
Fonte: 	2017 Lallias et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

info:eu-repo/semantics/openAccess

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