Effect of inbreeding and heritability of sperm competition success in the bulb mite Rhizoglyphus robini

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Etat: Serval
Version: de l'auteur
ID Serval
serval:BIB_42CA7BE7A4F4
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Effect of inbreeding and heritability of sperm competition success in the bulb mite Rhizoglyphus robini
Périodique
Heredity
Auteur(s)
Konior  M., Keller  L., Radwan  J.
ISSN
0018-067X
Statut éditorial
Publié
Date de publication
06/2005
Peer-reviewed
Oui
Volume
94
Numéro
6
Pages
577-81
Notes
Journal Article Research Support, Non-U.S. Gov't --- Old month value: Jun
Résumé
Sperm competition is a potent evolutionary force shaping the reproductive biology of most animal species. Here, we estimated the heritability of sperm competition success in the promiscuous bulb mite Rhizoglyphus robini. Sperm competition success was measured with the sterile male technique as the proportion of eggs fertilised by the second of three males mated with a single female. Sperm competition success responded significantly to selection. The heritability estimated from the response to five generations of selection was 0.13. We also estimated the effect of inbreeding on sperm competition success. Males produced by sib-mating (F=0.25) had a significantly lower sperm competition success than outbred males. The estimated coefficient of inbreeding depression was 0.53. Such high inbreeding depression together with moderately low heritability is consistent with the view that sperm competitive ability is under strong directional selection and strongly influences the reproductive success of males.
Mots-clé
Acaridae/*genetics/physiology Animals Female *Inbreeding Male Selection (Genetics) Sexual Behavior, Animal Spermatozoa/*physiology Variation (Genetics)
Pubmed
Web of science
Open Access
Oui
Création de la notice
24/01/2008 19:40
Dernière modification de la notice
08/05/2019 17:45
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