Pleiotropy in the melanocortin system, coloration and behavioural syndromes.

Détails

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Etat: Public
Version: de l'auteur
ID Serval
serval:BIB_2EC1D375BAD5
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Titre
Pleiotropy in the melanocortin system, coloration and behavioural syndromes.
Périodique
Trends in Ecology and Evolution
Auteur(s)
Ducrest A.L., Keller L., Roulin A.
ISSN
0169-5347[print], 0169-5347[linking]
Statut éditorial
Publié
Date de publication
2008
Peer-reviewed
Oui
Volume
23
Numéro
9
Pages
502-510
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't ; Review Publication Status: ppublish
Résumé
In vertebrates, melanin-based coloration is often associated with variation in physiological and behavioural traits. We propose that this association stems from pleiotropic effects of the genes regulating the synthesis of brown to black eumelanin. The most important regulators are the melanocortin 1 receptor and its ligands, the melanocortin agonists and the agouti-signalling protein antagonist. On the basis of the physiological and behavioural functions of the melanocortins, we predict five categories of traits correlated with melanin-based coloration. A review of the literature indeed reveals that, as predicted, darker wild vertebrates are more aggressive, sexually active and resistant to stress than lighter individuals. Pleiotropic effects of the melanocortins might thus account for the widespread covariance between melanin-based coloration and other phenotypic traits in vertebrates.
Mots-clé
Animals, Behavior, Animal/physiology, Melanins/metabolism, Mice, Pigments, Biological/genetics, Pigments, Biological/metabolism, Receptors, Melanocortin/genetics, Strigiformes/genetics, Strigiformes/metabolism
Pubmed
Web of science
Open Access
Oui
Création de la notice
11/06/2008 7:18
Dernière modification de la notice
20/08/2019 13:13
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