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dc.contributor.authorKotiahl, JS
dc.contributor.authorSimmons, LW
dc.contributor.authorHunt, J
dc.contributor.authorTomkins, Joseph Leopold
dc.identifier.citationKotiahl , JS , Simmons , LW , Hunt , J & Tomkins , J L 2003 , ' Males influence maternal effects that promote sexual selection : a quantitative genetic experiment with dung beetles Onthophagus taurus ' , American Naturalist , vol. 161 , pp. 852-859 .
dc.identifier.otherPURE: 300235
dc.identifier.otherPURE UUID: c254126d-ebbe-4082-83f4-1c096d597c10
dc.identifier.otherWOS: 000183905200003
dc.identifier.otherScopus: 0038302128
dc.descriptionJ.S.K. was funded by the Academy of Finland, L.W.S. by the Australian Research Council, J.H. by an Australian Postgraduate Award, and J.L.T. by a postdoctoral research fellowship from the University of Western Australia.en
dc.description.abstractRecently, doubt has been cast on studies supporting good genes sexual selection by the suggestion that observed genetic benefits for offspring may be confounded by differential maternal allocation. In traditional analyses, observed genetic sire effects on offspring phenotype may result from females allocating more resources to the offspring of attractive males. However, maternal effects such as differential allocation may represent a mechanism promoting genetic sire effects, rather than an alternative to them. Here we report results from an experiment on the horned dung beetle Onthophagus taurus, in which we directly compare genetic sire effects with maternal effects that are dependent on sire phenotype. We found strong evidence that mothers provide more resources to offspring when mated with large-horned males. There were significant heritabilities for both horn length and body size, but when differential maternal effects were controlled, the observed estimates of genetic variance were greatly reduced. Our experiment provides evidence that differential maternal effects may amplify genetic effects on offspring traits that are closely related to fitness. Thus, our results may partly explain the relatively high coefficients of additive genetic variation observed in fitness-related traits and provide empirical support for the theoretical argument that maternal effects can play an important role in evolution.
dc.relation.ispartofAmerican Naturalisten
dc.rights© 2003 by The University of Chicago.en
dc.subjectDifferential allocationen
dc.subjectMaternal effectsen
dc.subjectIndirect genetic effectsen
dc.subjectCoefficient of additive genetic varianceen
dc.subjectCallosobruchus-maculatus coleopteraen
dc.subjectAlternative reproductive tacticsen
dc.subjectAcuminatus coleopteraen
dc.subjectLek paradoxen
dc.subjectFluctuating asymmetryen
dc.subjectCondition dependenceen
dc.subjectFemale fecundityen
dc.subjectBruchid beetleen
dc.subjectQH301 Biologyen
dc.titleMales influence maternal effects that promote sexual selection : a quantitative genetic experiment with dung beetles Onthophagus taurusen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.description.statusPeer revieweden

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