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Extensive variation of leaf specialized metabolite production in sessile oak ( Quercus petraea ) populations is to a large extent genetically determined but not locally adaptive

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorCOQ--ETCHEGARAY, Domitille
hal.structure.identifierBiologie du fruit et pathologie [BFP]
hal.structure.identifierPlateforme Bordeaux Metabolome
hal.structure.identifierUnité de recherche Mycologie et Sécurité des Aliments [MycSA]
dc.contributor.authorBERNILLON, Stéphane
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLE-PROVOST, Grégoire
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDUCOUSSO, Alexis
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorLALANNE, Céline
hal.structure.identifierSILVA [SILVA]
dc.contributor.authorBONNE, Fabrice
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMOING, Annick
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBRACHI, Benjamin
dc.date.issued2023-04-08
dc.description.abstractEnSpecialized or secondary metabolites (SMs) play a key role in plant resistance against abiotic stresses and defences against bioaggressors. For example, in sessile oaks Quercus petraea , phenolics contribute to reduce herbivore damage and improve drought resistance. Here, we explored the natural variation of SMs in nine European provenances of sessile oaks and aimed to detect its underlying genetic bases. We sampled mature leaves from high and low branches on 225 sessile oak trees located in a common garden and used untargeted metabolomics to characterise the variation of 219 specialized metabolites. In addition, we used whole genome low-depth sequencing to genotype individuals for 1.4M genetic markers. We then performed genome-wide association analyses to identify the genetic bases underlying the variation of leaf SMs. We found that leaf SMs displayed extensive within-provenance variation, but very little differentiation between provenances. For ∼10% of the metabolites we detected, most of this variation could be explained by a single genetic marker. Our results suggest that genetic variation for most leaf SMs is unlikely to be locally adaptive, and that selective pressures may act locally to maintain diversity at loci associated with leaf SM variation within oak populations.
dc.language.isoen
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.title.enExtensive variation of leaf specialized metabolite production in sessile oak ( Quercus petraea ) populations is to a large extent genetically determined but not locally adaptive
dc.typeDocument de travail - Pré-publication
dc.subject.halSciences de l'environnement/Biodiversité et Ecologie
hal.identifierhal-04144753
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04144753v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2023-04-08&rft.au=COQ--ETCHEGARAY,%20Domitille&BERNILLON,%20St%C3%A9phane&LE-PROVOST,%20Gr%C3%A9goire&KREMER,%20Antoine&DUCOUSSO,%20Alexis&rft.genre=preprint


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