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From whole-genome scans for divergence to the discovery of speciation genes in oaks

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLEROY, Thibault
hal.structure.identifier*
dc.contributor.authorAURY, Jean Marc
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBODÉNÈS, Catherine
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorVILLATE, Laure
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLE PROVOST, Grégoire
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLALANNE, Céline
hal.structure.identifier*
dc.contributor.authorBELSER, Caroline
hal.structure.identifierGénétique Diversité et Ecophysiologie des Céréales [GDEC]
dc.contributor.authorMURAT, Florent
hal.structure.identifierGénétique Diversité et Ecophysiologie des Céréales [GDEC]
dc.contributor.authorSALSE, Jerome
hal.structure.identifierUnité de Recherche Génomique Info [URGI]
dc.contributor.authorAMSELEM, Joelle
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
dc.date.issued2015
dc.date.conference2015-08-10
dc.description.abstractEnUnderstanding the nature, the number and the strength of barriers to gene flow is a major goal in speciation genomics. Yet, few speciation genes have been reported to date in plants. Considering the costs of NGS are still coming down, it becomes possible to identify such speciation genes at the pan-genomic level even for non-model species. This presentation will review our latest advances regarding this research topic within the European white oak complex. We first established a reference genome for oak (1.5Gb/2C) organized into pseudo-chromosomes and used a deep pool sequencing approach to characterize 4 sympatric and interfertile species (Quercus petraea, Q. robur, Q. pyrenaica, Q. pubescens). Even if these species exhibit different ecological requirements (e.g. soil pH or moisture), they are still connected by substantial levels of 'interspecific' gene flow (FST < 0.2). As a consequence, loci related to intrinsic selection against hybrids are expected to be revealed together with the gene driving ecological divergence. A whole-genome scan for divergence was performed using up to 250x genome coverage per species. Here, we report evidences for genomic islands of differentiation and identified some candidate speciation genes for both endogenous and exogenous barriers including some genes involved in flowering or drought tolerance.
dc.language.isoen
dc.title.enFrom whole-genome scans for divergence to the discovery of speciation genes in oaks
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.page1 p.
bordeaux.conference.title15. Congress of the European Society for Evolutionary Biology (ESEB)
bordeaux.countryCH
bordeaux.conference.cityLausanne
bordeaux.peerReviewedoui
hal.identifierhal-02797182
hal.version1
hal.invitednon
hal.conference.end2015-08-14
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02797182v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.date=2015&amp;rft.spage=1%20p.&amp;rft.epage=1%20p.&amp;rft.au=LEROY,%20Thibault&amp;AURY,%20Jean%20Marc&amp;BOD%C3%89N%C3%88S,%20Catherine&amp;VILLATE,%20Laure&amp;LE%20PROVOST,%20Gr%C3%A9goire&amp;rft.genre=conference


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