Good genes drive female choice for mating partners in the lek-breeding European treefrog.

Détails

Ressource 1Télécharger: BIB_46C30056B3C5.P001.pdf (27.98 [Ko])
Etat: Serval
Version: Author's accepted manuscript
ID Serval
serval:BIB_46C30056B3C5
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Good genes drive female choice for mating partners in the lek-breeding European treefrog.
Périodique
Evolution
Auteur(s)
Jaquiéry J., Broquet T., Aguilar C., Evanno G., Perrin N.
ISSN
1558-5646[electronic], 0014-3820[linking]
Statut éditorial
Publié
Date de publication
2010
Peer-reviewed
Oui
Volume
64
Numéro
1
Pages
108-115
Langue
anglais
Résumé
Investigating the mechanisms underlying female mate choice is important for sexual-selection theory, but also for population-genetic studies, because distinctive breeding strategies affect differently the dynamics of gene diversity within populations. Using field-monitoring, genetic-assignment, and laboratory-rearing methods, we investigated chorus attendance, mating success and offspring fitness in a population of lek-breeding tree-frogs (Hyla arborea) to test whether female choice is driven by good genes or complementary genes. Chorus attendance explained approximately 50% of the variance in male mating success, but did not correlate with offspring fitness. By contrast, offspring body mass and growth rate correlated with male attractiveness, measured as the number of matings obtained per night of calling. Genetic similarity between mating partners did not depart from random, and did not affect offspring fitness. We conclude that females are able to choose good partners under natural settings and obtain benefits from the good genes, rather than compatible genes, their offspring inherit. This heritability of fitness is likely to reduce effective population sizes below values previously estimated.
Mots-clé
Female choice, good genes, Hyla arborea, lek, sexual selection, heritability of fitness
Pubmed
Web of science
Open Access
Oui
Création de la notice
12/08/2009 9:23
Dernière modification de la notice
08/05/2019 17:58
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