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Between and within species diversity of water use efficiency for Q. petraea and Q. robur : At the crossroad of ecology, ecophysiology and genetics

hal.structure.identifierSILVA [SILVA]
dc.contributor.authorBRENDEL, Oliver
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorLE THIEC, Didier
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorCOHEN, David
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorBURÉ, Cyril
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorGERARDIN, Theo
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorPONTON, Stéphane
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorRABARIJAONA, Arivoara
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLE PROVOST, Grégoire
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBRACHI, Benjamin
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierEtude du Polymorphisme des Génomes Végétaux [EPGV]
dc.contributor.authorBÉRARD, Aurélie
hal.structure.identifierEtude du Polymorphisme des Génomes Végétaux [EPGV]
dc.contributor.authorFAIVRE RAMPANT, Patricia
dc.date.conference2023-02-21
dc.description.abstractEnClimate change predictions tend towards drier summers, challenging forest management to maintain biomass production and survival while reducing water use. Sustainable forest management practices need to take into account these future environmental conditions. In this respect, genetic variation for water use efficiency (WUE), the ratio between biomass production and water use, could be mobilized for adapting forests to these future climates. A strong within species adaptive diversity of WUE related to soil water conditions would support an assisted migration forest management strategy. Here, the case of the two predominant European species Quercus robur and Q. petraea will be explored.A strong genetic control of WUE had already been shown for one Q. robur family. Here, the study of the genetic architecture of WUE was enlarged to Q. petraea and hybrid families, to establish the across species the genetic basis of WUE. To further clarify the functional basis of the difference in WUE and underlying traits, within and between both species, detailed ecophysiological measurements were carried out. These ecophysiological studies were complemented by gene expression studies in leaves and in guard cells. These indicated a within species variation of the molecular response to drought stress1. Finally, an existing common garden of Q. petraea allowed to characterise within and among population diversity in WUE2 Significant differences in WUE were found among populations but a much larger variability was observed within than among populations. The population plasticity of WUE to severe drought could be related to the soil type of the provenance sites, suggesting a local adaptation in terms of drought response strategies. The genotyping of these populations allowed to detect strong associations between WUE and its plasticity and sequenced genes. An overview will be given on this research strategy, ranging from detailed ecophysiology and gene expression to functional ecology and genomics. References1 Le Provost G, Gerardin T, Plomion C, Brendel O (2022) Molecular plasticity to soil water deficit differs between sessile oak (Quercus Petraea (Matt.) Liebl.) high- and low-water use efficiency genotypes. Tree Physiology:tpac087.2 Rabarijaona A, Ponton S, Bert D, Ducousso A, Richard B, Levillain J, Brendel O (2022) Provenance Differences in Water-Use Efficiency Among Sessile Oak Populations Grown in a Mesic Common Garden. Front For Glob Change 5:914199.
dc.language.isoen
dc.subject.enPlasticity
dc.subject.enDrought
dc.subject.enQuercus
dc.subject.enWater use efficiency
dc.title.enBetween and within species diversity of water use efficiency for Q. petraea and Q. robur : At the crossroad of ecology, ecophysiology and genetics
dc.typeCommunication dans un congrès
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
bordeaux.conference.titleINUPRAG Symposium on Integrative Plant Biology
bordeaux.countrySE
bordeaux.conference.cityUmea
bordeaux.peerReviewedoui
hal.identifierhal-05248503
hal.version1
hal.invitednon
hal.proceedingsnon
hal.conference.organizerUmea Plant Science Centre Suede
hal.conference.end2023-02-23
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-05248503v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.au=BRENDEL,%20Oliver&LE%20THIEC,%20Didier&COHEN,%20David&BUR%C3%89,%20Cyril&GERARDIN,%20Theo&rft.genre=unknown


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