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Genetic architecture of aerial and root traits in field-grown grafted grapevines is largely independent

dc.rights.licenseopenen_US
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorTANDONNET, Jean-Pascal
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorMARGUERIT-JACOB, Elisa
ORCID: 0000-0002-5016-990X
IDREF: 127516697
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorOLLAT, Nathalie
IDREF: 126740062
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorCOOKSON, Sarah
IDREF: 22161009X
dc.date.accessioned2020-04-08T12:44:19Z
dc.date.available2020-04-08T12:44:19Z
dc.date.issued2018
dc.identifier.issn0040-5752en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/4175
dc.description.abstractEnQTLs were identified for traits assessed on field-grown grafted grapevines. Root number and section had the largest phenotypic variance explained. Genetic control of root and aerial traits was independent. Breeding new rootstocks for perennial crops remains challenging, mainly because of the number of desirable traits which have to be combined, these traits include good rooting ability and root development. Consequently, the present study analyzes the genetic architecture of root traits in grapevine. A segregating progeny of 138 F1 genotypes issued from an inter-specific cross between Vitis vinifera cv. Cabernet-Sauvignon × V. riparia cv. Gloire de Montpellier, used as rootstock, was phenotyped in grafted plants grown for 2 years in the field. Seven traits, related to aerial and root development, were quantified. Heritability ranged between 0.44 for aerial biomass to 0.7 for root number. Total root number was related to the number of fine roots, while root biomass was related to the number of coarse roots. Significant quantitative trait loci (QTLs) were identified for all the traits studied with some of them explaining approximately 20% of phenotypic variance. Only a single QTL co-localized for root and aerial biomass. Identified QTLs for aerial-to-root biomass ratio suggest that aerial and root traits are controlled independently. Genes known to be involved in auxin signaling pathways and phosphorus nutrition, whose orthologues were previously shown to regulate root development in Arabidopsis, were located in the confidence intervals of several QTLs. This study opens new perspectives for breeding rootstocks with improved root development capacities.
dc.language.isoENen_US
dc.subjectQtl
dc.subjectVitis Vinifera
dc.subjectPorte greffe
dc.subjectArchitecture racinaire
dc.title.enGenetic architecture of aerial and root traits in field-grown grafted grapevines is largely independent
dc.title.alternativeTheor. appl. genet.en_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1007/s00122-017-3046-6en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
dc.identifier.pubmed29305700en_US
bordeaux.journalTheoretical and Applied Geneticsen_US
bordeaux.page903-915en_US
bordeaux.volume131en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.issue4en_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-02536940
hal.version1
hal.date.transferred2020-04-08T12:44:23Z
hal.exporttrue
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