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          Institute: MPI für Evolutionsbiologie     Collection: Evolutionary ecology     Display Documents

ID: 321531.0, MPI für Evolutionsbiologie / Evolutionary ecology
Individual MHC class I and MHC class IIB diversities are associated with male and female reproductive traits in the three-spined stickleback
Authors:Jäger, I.; Eizaguirre, C.; Griffiths, S. W.; Kalbe, M.; Krobbach, C. K.; Reusch, T. B. H.; Schaschl, H.; Milinski, M.
Date of Publication (YYYY-MM-DD):2007-09
Title of Journal:Journal of Evolutionary Biology
Issue / Number:5
Start Page:2005
End Page:2015
Review Status:not specified
Audience:Not Specified
Abstract / Description:Genes of the major histocompatibility complex (MHC) are indispensable for pathogen defence in vertebrates. With wild-caught three-spined sticklebacks (Gasterosteus aculeatus) we conducted the first study to relate individual reproductive parameters to both MHC class I and II diversities. An optimal MHC class IIB diversity was found for male nest quality. However, male breeding colouration was most intense at a maximal MHC class I diversity. One MHC class I allele was associated with male redness. Similarly, one MHC class IIB allele was associated with continuous rather than early female reproduction, possibly extending the reproductive period. Both alleles occurred more frequently with increasing individual allele diversity. We suggest that if an allele is currently not part of the optimum, it had not been propagated by choosy females. The parasite against which this allele provides resistance is therefore unlikely to have been predominant the previous year - a step to negative frequency-dependent selection.
Free Keywords:female reproduction; Gasterosteus aculeatus; male breeding colouration; MHC class I; MHC class IIB; negative frequency-dependent selection; nest quality
External Publication Status:published
Document Type:Article
Affiliations:MPI für Limnologie/Abt. Evolutionsökologie
External Affiliations:Cardiff School of Biosciences, Cardiff University, PO Box 915, Cardiff CF10 3TL, Wales, UK; Institute for Evolution and Biodiversity, University of Münster, Hüfferstrasse 1, 48149 Münster, germany; Konrad-Lorenz Institute for Ethology, Savoyenstrasse 1a, 1160 Wien, Austria
Identifiers:ISSN:1010-061X [ID-No:1]
DOI:10.1111/j.1420-9101.2007.01366.x [ID-No:2]
LOCALID:2568/S 38721 [Listen-Nummer/S-Nummer]
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