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Oak stands along an elevation gradient have different molecular strategies for regulating bud phenology

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLE PROVOST, Gregoire
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLALANNE, Céline
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
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.identifierUmeå University, Sweden
dc.contributor.authorMORITZ, Thomas
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
dc.date.issued2023-02-23
dc.identifier.issn1471-2229
dc.description.abstractEnBackground Global warming raises serious concerns about the persistence of species and populations locally adapted to their environment, simply because of the shift it produces in their adaptive landscape. For instance, the phenological cycle of tree species may be strongly affected by higher winter temperatures and late frost in spring. Given the variety of ecosystem services they provide, the question of forest tree adaptation has received increasing attention in the scientific community and catalyzed research efforts in ecology, evolutionary biology and functional genomics to study their adaptive capacity to respond to such perturbations. Results In the present study, we used an elevation gradient in the Pyrenees Mountains to explore the gene expression network underlying dormancy regulation in natural populations of sessile oak stands sampled along an elevation cline and potentially adapted to different climatic conditions mainly driven by temperature. By performing analyses of gene expression in terminal buds we identified genes displaying significant dormancy, elevation or dormancy-byelevation interaction effects. Our Results highlighted that low-and high-altitude populations have evolved different molecular strategies for minimizing late frost damage and maximizing the growth period, thereby increasing potentially their respective fitness in these contrasting environmental conditions. More particularly, population from high elevation overexpressed genes involved in the inhibition of cell elongation and delaying flowering time while genes involved in cell division and flowering, enabling buds to flush earlier were identified in population from low elevation. Conclusion Our study made it possible to identify key dormancy-by-elevation responsive genes revealing that the stands analyzed in this study have evolved distinct molecular strategies to adapt their bud phenology in response to temperature.
dc.description.sponsorshipImpacts évolutif et fonctionnel de variations épigénétiques chez des arbres forestiers.
dc.language.isoen
dc.publisherBioMed Central
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enResponse to temperature
dc.subject.enBud phenology
dc.subject.enElevation cline
dc.subject.enGene expression
dc.subject.enHormone quantification
dc.subject.enSessile oak
dc.title.enOak stands along an elevation gradient have different molecular strategies for regulating bud phenology
dc.typeArticle de revue
dc.identifier.doi10.1186/s12870-023-04069-2
dc.subject.halSciences de l'environnement
bordeaux.journalBMC Plant Biology
bordeaux.volume23
bordeaux.issue108
bordeaux.peerReviewedoui
hal.identifierhal-04003618
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04003618v1
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