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The effects of inbreeding, genetic dissimilarity and phenotype on male reproductive success in a dioecious plant

dc.contributor.authorAusterlitz, Frederic
dc.contributor.authorGleiser, Gabriela
dc.contributor.authorTeixeira, Sara
dc.contributor.authorBernasconi, Giorgina
dc.date.accessioned2018-12-07T14:53:10Z
dc.date.available2018-12-07T14:53:10Z
dc.date.issued2012-01
dc.description.abstractPollen fate can strongly affect the genetic structure of populations with restricted gene flow and significant inbreeding risk. We established an experimental population of inbred and outbred Silene latifolia plants to evaluate the effects of (i) inbreeding depression, (ii) phenotypic variation and (iii) relatedness between mates on male fitness under natural pollination. Paternity analysis revealed that outbred males sired significantly more offspring than inbred males. Independently of the effects of inbreeding, male fitness depended on several male traits, including a sexually dimorphic (flower number) and a gametophytic trait (in vitro pollen germination rate). In addition, full-sib matings were less frequent than randomly expected. Thus, inbreeding, phenotype and genetic dissimilarity simultaneously affect male fitness in this animal-pollinated plant. While inbreeding depression might threaten population persistence, the deficiency of effective matings between sibs and the higher fitness of outbred males will reduce its occurrence and counter genetic erosion.
dc.description.sponsorshipSwiss NSF [3100A0-122004/1, PIOIA-119443, IZK0Z3-125693]; Fondation Mercier pour la Science; Forschungskredit of Zurich University [560065]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1098/rspb.2011.0652
dc.identifier.issn0962-8452
dc.identifier.issn1471-2954
dc.identifier.urihttp://hdl.handle.net/10400.1/11379
dc.language.isoeng
dc.peerreviewedyes
dc.publisherRoyal Soc
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSilene-Latifolia Caryophyllaceae
dc.subjectTorminalis L. Crantz
dc.subjectSexual-dimorphism
dc.subjectPollen dispersal
dc.subjectMating success
dc.subjectQuantitative genetics
dc.subjectNatural-populations
dc.subjectMultiple paternity
dc.subjectWildservice tree
dc.subjectDepression
dc.titleThe effects of inbreeding, genetic dissimilarity and phenotype on male reproductive success in a dioecious plant
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage100
oaire.citation.issue1726
oaire.citation.startPage91
oaire.citation.titleProceedings of the Royal Society B: Biological Sciences
oaire.citation.volume279
person.familyNameTeixeira
person.givenNameSara
person.identifier.orcid0000-0003-0419-2348
person.identifier.ridM-3424-2013
person.identifier.scopus-author-id23986333100
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublicationb461f1bb-dfdb-410f-b579-647fa97957ca
relation.isAuthorOfPublication.latestForDiscoveryb461f1bb-dfdb-410f-b579-647fa97957ca

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