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Genetic architecture of carbon isotope composition and growth in Eucalyptus across multiple environments

hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBARTHOLOMÉ, Jérôme
hal.structure.identifierCentre de Recherche sur la Durabilité et la Productivité des Plantations Industrielles (Dispositif en Partenariat) [CRDPI]
dc.contributor.authorMABIALA, André
hal.structure.identifierLaboratoire de Recherche en Sciences Végétales [LRSV]
dc.contributor.authorSAVELLI, Bruno
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBERT, Didier
hal.structure.identifierEcologie et Ecophysiologie Forestières [devient SILVA en 2018] [EEF]
dc.contributor.authorBRENDEL, Oliver
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorPLOMION, Christophe
hal.structure.identifierAmélioration génétique et adaptation des plantes méditerranéennes et tropicales [UMR AGAP]
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorGION, Jean-Marc
dc.date.issued2015
dc.identifier.issn0028-646X
dc.description.abstractEnIn the context of climate change, the water-use efficiency (WUE) of highly productive tree varieties, such as eucalypts, has become a major issue for breeding programmes. This study set out to dissect the genetic architecture of carbon isotope composition (C-13), a proxy of WUE, across several environments. A family of Eucalyptus urophyllaxE.grandis was planted in three trials and phenotyped for C-13 and growth traits. High-resolution genetic maps enabled us to target genomic regions underlying C-13 quantitative trait loci (QTLs) on the E.grandis genome. Of the 15 QTLs identified for C-13, nine were stable across the environments and three displayed significant QTL-by-environment interaction, suggesting medium to high genetic determinism for this trait. Only one colocalization was found between growth and C-13. Gene ontology (GO) term enrichment analysis suggested candidate genes related to foliar C-13, including two involved in the regulation of stomatal movements. This study provides the first report of the genetic architecture of C-13 and its relation to growth in Eucalyptus. The low correlations found between the two traits at phenotypic and genetic levels suggest the possibility of improving the WUE of Eucalyptus varieties without having an impact on breeding for growth.
dc.description.sponsorshipAmélioration des propriétés du bois chez l'Eucalyptus et le peuplier pour les bioenergies - ANR-10-KBBE-0007
dc.description.sponsorshipAnalyse du déterminisme génétique et environnemental de l'efficacité d'utilisation de l'eau pour améliorer la durabilité des plantations forestières - ANR-13-ADAP-0012
dc.language.isoen
dc.publisherWiley
dc.subject.encarbon isotope composition (C-13)
dc.subject.enEucalyptus
dc.subject.engene ontology (GO)
dc.subject.engrowth
dc.subject.enQTL mapping
dc.subject.enwater-use efficiency (WUE)
dc.title.enGenetic architecture of carbon isotope composition and growth in Eucalyptus across multiple environments
dc.typeArticle de revue
dc.identifier.doi10.1111/nph.13301
dc.subject.halSciences du Vivant [q-bio]
bordeaux.journalNew Phytologist
bordeaux.page1437 - 1449
bordeaux.volume206
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-01556859
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01556859v1
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