Titre
Sexual selection in genetic colour-polymorphic species: a review of experimental studies and perspectives
Type
synthèse (review)
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Roulin, A.
Auteure/Auteur
Bize, P.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
0289-0771
Statut éditorial
Publié
Date de publication
2007
Volume
25
Numéro
2
Première page
99
Dernière page/numéro d’article
105
Peer-reviewed
Oui
Langue
anglais
Résumé
Sexual selection theory has primarily focussed on the role of mating preferences for the best individuals in the evolution of condition-dependent ornaments, traits that signal absolute quality. Because the most suitable mate for one individual is not always the best for others, however, we argue that non-directional mate choice can promote the evolution of alternative morphs that are not condition-dependent in their expression (i.e. genetic polymorphism). We list the different mate-choice rules (i.e. all individuals have the same preference; preference depends on the chooser's morph; individuals mate preferentially with conspecifics displaying an uncommon or the most frequent morph) and review experimental studies that investigated mate choice in natural populations of colour-polymorphic animals. Our review emphasises that although the experimental data support the idea that sexual selection plays an important role in the evolution of genetic colour polymorphism in many different ways, little is known about the adaptive value of each mate-choice strategy and about their implication in the evolutionary stability of colour polymorphism. One way of solving this problem is to determine the adaptive function of colour morphs, a worthwhile objective, because better understanding of mate-choice rules in polymorphic species should provide important insights into sexual-selection processes and, in turn, into the maintenance of genetic variation.
PID Serval
serval:BIB_9F7834B13588
Date de création
2008-01-24T16:42:13.999Z
Date de création dans IRIS
2025-05-20T23:41:23Z
Fichier(s)![Vignette d'image]()
En cours de chargement...
Nom
BIB_9F7834B13588.P001.pdf
Version du manuscrit
preprint
Taille
147.61 KB
Format
Adobe PDF
PID Serval
serval:BIB_9F7834B13588.P001
Somme de contrôle
(MD5):73b114a111e82b9c900f9197887541bd