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dc.contributor.authorLihoreau, Mathieu
dc.contributor.authorZimmer, Cedric
dc.contributor.authorRivault, Colette
dc.identifier.citationLihoreau , M , Zimmer , C & Rivault , C 2008 , ' Mutual mate choice : when it pays both sexes to avoid inbreeding ' , PLoS ONE , vol. 3 , no. 10 , e3365 .
dc.identifier.otherPURE: 43102778
dc.identifier.otherPURE UUID: 5a572cb5-5a69-42c1-969b-0005476cd3d3
dc.identifier.otherWOS: 000265114100007
dc.identifier.otherScopus: 54849426224
dc.description.abstractTheoretical models of sexual selection predict that both males and females of many species should benefit by selecting their mating partners. However, empirical evidence testing and validating this prediction is scarce. In particular, whereas inbreeding avoidance is expected to induce sexual conflicts, in some cases both partners could benefit by acting in concert and exerting mutual mate choice for non-assortative pairings. We tested this prediction with the gregarious cockroach Blattella germanica (L.). We demonstrated that males and females base their mate choice on different criteria and that choice occurs at different steps during the mating sequence. Males assess their relatedness to females through antennal contacts before deciding to court preferentially non-siblings. Conversely, females biased their choice towards the most vigorously courting males that happened to be non-siblings. This study is the first to demonstrate mutual mate choice leading to close inbreeding avoidance. The fact that outbred pairs were more fertile than inbred pairs strongly supports the adaptive value of this mating system, which includes no "best phenotype'' as the quality of two mating partners is primarily linked to their relatedness. We discuss the implications of our results in the light of inbreeding conflict models.
dc.relation.ispartofPLoS ONEen
dc.rights© 2008 Lihoreau et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en
dc.subjectSexual selectionen
dc.subjectInbreeding avoidanceen
dc.titleMutual mate choice : when it pays both sexes to avoid inbreedingen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Psychology and Neuroscienceen
dc.description.statusPeer revieweden

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