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dc.rights.licenseopenen_US
dc.contributor.authorLIU, Xinna
dc.contributor.authorCHEN, Haiyang
dc.contributor.authorLI, Shenchang
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorLECOURIEUX, David
IDREF: 061722464
dc.contributor.authorDUAN, Wei
dc.contributor.authorFAN, Peige
dc.contributor.authorLIANG, Zhenchang
dc.contributor.authorWANG, Lijun
dc.date.accessioned2024-02-26T14:34:01Z
dc.date.available2024-02-26T14:34:01Z
dc.date.issued2023
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/188438
dc.description.abstractEnHeat stress limits growth and development of crops including grapevine which is a popular fruit in the world. Genetic variability in crops thermotolerance is not well understood. We identified and characterized heat stress transcription factor HSFA2 in heat sensitive Vitis vinifera 'Jingxiu' (named as VvHSFA2) and heat tolerant Vitis davidii 'Tangwei' (named as VdHSFA2). The transcriptional activation activities of VdHSFA2 are higher than VvHSFA2, the variation of single amino acid (Thr315Ile) in AHA1 motif leads to the difference of transcription activities between VdHSFA2 and VvHSFA2. Based on 41 Vitis germplasms, we found that HSFA2 is differentiated at coding region among heat sensitive V. vinifera, and heat tolerant Vitis davidii and Vitis quinquangularis. Genetic evidence demonstrates VdHSFA2 and VvHSFA2 are positive regulators in grape thermotolerance, and the former can confer higher thermotolerance than the latter. Moreover, VdHSFA2 can regulate more target genes than VvHSFA2. As a target gene of both VdHSFA2 and VvHSFA2, overexpression of MBF1c enhanced the grape thermotolerance whereas dysfunction of MBF1c resulted in thermosensitive phenotype. Together, our results revealed that VdHSFA2 confers higher thermotolerance than VvHSFA2, and MBF1c acts as their target gene to induce thermotolerance. The VdHSFA2 may be adopted for molecular breeding in grape thermotolerance. © 2023 The Author(s).
dc.language.isoENen_US
dc.rightsAttribution 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/us/*
dc.title.enNatural variations of HSFA2 enhance thermotolerance in grapevine
dc.typeArticle de revueen_US
dc.identifier.doi10.1093/hr/uhac250en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalHorticulture Researchen_US
bordeaux.volume10en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.issue1en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionINRAEen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
dc.rights.ccCC BYen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Horticulture%20Research&rft.date=2023&rft.volume=10&rft.issue=1&rft.au=LIU,%20Xinna&CHEN,%20Haiyang&LI,%20Shenchang&LECOURIEUX,%20David&DUAN,%20Wei&rft.genre=article


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