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Locally adapted oak populations along an elevation gradient display different molecular strategies to regulate bud phenology.

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLE PROVOST, Gregoire
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLALANNE, Celine
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
hal.structure.identifierHelixVenture
dc.contributor.authorLESUR, Isabelle
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLOUVET, Jean-Marc
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDELZON, Sylvain
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
hal.structure.identifierGenoscope - Centre national de séquençage [Evry] [GENOSCOPE]
dc.contributor.authorLABADIE, Karine
hal.structure.identifierLaboratoire de Bioinformatique pour la Génomique et la Biodiversité [LBGB]
dc.contributor.authorAURY, Jean-Marc
hal.structure.identifierLaboratoire de Bioinformatique pour la Génomique et la Biodiversité [LBGB]
dc.contributor.authorDA SILVA, Corinne
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
dc.description.abstractEnResearch conducted: With the ongoing global warming, there are serious concerns about the persistence of locally adapted populations. Indeed, with the raising of temperature, the phenological cycle of tree species may be strongly affected since higher winter temperatures may have a negative impact on endodormancy release if chilling requirements are not fulfilled during winter and late frost in spring may expose trees if buds flush too early. Thus, Environmental gradients (showing continuous variations of environmental conditions) constitute a design of choice to analyze the effect of winter dormancy in locally adapted population. Methods: In the present study, we used an elevation gradient in the Pyrenees to explore the gene expression network involved in dormancy regulation in natural populations of sessile oak locally adapted to temperature. Terminal buds were harvested during dormancy induction and release at different elevations. Then, gene expression was quantified using RNAseq and we used a likelihood ratio test to identify genes displaying significant dormancy, elevation or dormancy-by-elevation interaction effects. Key results: Our results highlight molecular processes in locally adapted populations along this elevation cline, and made it possible to identify key dormancy-by-elevation responsive genes revealing that locally adapted populations have evolved distinct molecular strategies to adapt their bud phenology in response to environmental variation (i.e. temperature).
dc.language.isoen
dc.subject.enSessile oak
dc.subject.enelevation cline
dc.subject.endormancy
dc.subject.enRNAseq
dc.subject.enlocally adapted population
dc.title.enLocally adapted oak populations along an elevation gradient display different molecular strategies to regulate bud phenology.
dc.typeDocument de travail - Pré-publication
dc.identifier.doi10.1101/2021.09.21.461210
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.page1-43
hal.identifierhal-03352278
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03352278v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.spage=1-43&rft.epage=1-43&rft.au=LE%20PROVOST,%20Gregoire&LALANNE,%20Celine&LESUR,%20Isabelle&LOUVET,%20Jean-Marc&DELZON,%20Sylvain&rft.genre=preprint


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