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Evolution of inbreeding depression in species combining self-incompatibility and partial asexual reproduction

hal.structure.identifierInstituto Nacional de Investigación y Tecnología Agraria y Alimentaria = National Institute for Agricultural and Food Research and Technology [INIA]
hal.structure.identifierFonctionnement et évolution des systèmes écologiques [FESE]
dc.contributor.authorNAVASCUÉS, Miguel
hal.structure.identifierInstitut de Génétique, Environnement et Protection des Plantes [IGEPP]
dc.contributor.authorSTOECKEL, Solenn
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorMARIETTE, Stéphanie
dc.date.issued2007
dc.date.conference2007-08-20
dc.description.abstractEnThe origin and maintaining of self-incompatibility systems in angiosperms are still debated questions. Based on the study of interactions between viability loci, causing inbreeding depression, and the S-locus, Charlesworth and Charlesworth (1979) demonstrated that self-compatibility can secondarily evolve through the breakdown of a SI system if inbreeding depression is small enough. The level of inbreeding depression in species that show a self-incompatibility system is a key parameter for the maintenance of the system. Several studies were developed to predict when the system can breakdown. In species combining both self-incompatibility and asexual reproduction, we hypothesize that the maintenance of the SI system may be due to the maintenance of inbreeding depression not only on locus directly linked to the S locus, but at the genome level due to asexual reproduction.We developed a model to simulate the evolution of inbreeding depression in a diploid species that reproduce both asexually and sexually with a self-incompatibility system. Four loci were studied: the S-locus that determines self-incompatibility, a viability locus and two neutral loci. We simulated different scenario, varying the population size, the selection intensity and the asexual reproduction rate. Results of this model will be presented.
dc.language.isoen
dc.title.enEvolution of inbreeding depression in species combining self-incompatibility and partial asexual reproduction
dc.typeAutre communication scientifique (congrès sans actes - poster - séminaire...)
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences du Vivant [q-bio]/Biologie végétale
dc.subject.halSciences de l'environnement
bordeaux.conference.title11. Congress of the European Society of Evolutionary Biology (ESEB)
bordeaux.countrySE
bordeaux.conference.cityUppsala
bordeaux.peerReviewedoui
hal.identifierhal-02755474
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.end2007-08-25
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02755474v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2007&rft.au=NAVASCU%C3%89S,%20Miguel&STOECKEL,%20Solenn&MARIETTE,%20St%C3%A9phanie&rft.genre=conference


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