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Female rose bitterling prefer MHC-dissimilar males: experimental evidence
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SYSNO ASEP 0379065 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Female rose bitterling prefer MHC-dissimilar males: experimental evidence Author(s) Reichard, Martin (UBO-W) RID, ORCID, SAI, SAI
Spence, R. (GB)
Bryjová, Anna (UBO-W) SAI, ORCID
Bryja, Josef (UBO-W) RID, SAI, ORCID
Smith, C. (GB)Number of authors 5 Source Title PLoS ONE. - : Public Library of Science - ISSN 1932-6203
Roč. 7, č. 7 (2012), e40780Number of pages 8 s. Publication form Online - E Language eng - English Country US - United States Keywords major histocompatibility complex ; mate choice ; sexual selection ; good genes ; reproductive success ; compatible genes ; polymorphism ; evolution Subject RIV EG - Zoology R&D Projects GA206/09/1163 GA ČR - Czech Science Foundation (CSF) Institutional support UBO-W - RVO:68081766 UT WOS 000306548900047 EID SCOPUS 84864012521 DOI 10.1371/journal.pone.0040780 Annotation The role of genetic benefits in female mate choice remains a controversial aspect of sexual selection theory. In contrast to "good allele" models of sexual selection, "compatible allele" models of mate choice predict that females prefer mates with alleles complementary to their own rather than conferring additive effects. While correlative results suggest complementary genetic effects to be plausible, direct experimental evidence is scarce. A previous study on the Chinese rose bitterling (Rhodeus ocellatus) demonstrated a positive correlation between female mate choice, offspring growth and survival, and the functional dissimilarity between the Major Histocompatibility Complex (MHC) alleles of males and females. Here we directly tested whether females used cues associated with MHC genes to select genetically compatible males in an experimental framework. By sequentially pairing females with MHC similar and dissimilar males, based on a priori known MHC profiles, we showed that females discriminated between similar and dissimilar males and deposited significantly more eggs with MHC dissimilar males. Notably, the degree of dissimilarity was an important factor for female decision to mate, possibly indicating a potential threshold value of dissimilarity for decision making, or of an indirect effect of the MHC. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2013
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