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MYB24 orchestrates terpene and flavonol metabolism as light responses to anthocyanin depletion in variegated grape berries

dc.rights.licenseopenen_US
dc.contributor.authorZHANG, Chen
dc.contributor.authorDAI, Zhanwu
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorFERRIER, Thilia
dc.contributor.authorORDUÑA, Luis
dc.contributor.authorSANTIAGO, Antonio
dc.contributor.authorPERIS, Arnau
dc.contributor.authorWONG, Darren
dc.contributor.authorKAPPEL, Christian
dc.contributor.authorSAVOI, Stefania
dc.contributor.authorLOYOLA, Rodrigo
dc.contributor.authorAMATO, Alessandra
dc.contributor.authorKOZAK, Bartosz
dc.contributor.authorLI, Miaomiao
dc.contributor.authorLIANG, Akun
dc.contributor.authorCARRASCO, David
dc.contributor.authorMEYER-REGUEIRO, Carlos
dc.contributor.authorESPINOZA, Carmen
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorHILBERT, Ghislaine
dc.contributor.authorFIGUEROA-BALDERAS, Rosa
dc.contributor.authorCANTU, Dario
dc.contributor.authorARROYO-GARCIA, Rosa
dc.contributor.authorARCE-JOHNSON, Patricio
dc.contributor.authorCLAUDEL, Patricia
dc.contributor.authorERRANDONEA, Daniel
dc.contributor.authorRODRÍGUEZ-CONCEPCIÓN, Manuel
dc.contributor.authorDUCHÊNE, Eric
dc.contributor.authorHUANG, Shao-Shan Carol
dc.contributor.authorCASTELLARIN, Simone Diego
dc.contributor.authorTORNIELLI, Giovanni Battista
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorBARRIEU, Francois
dc.contributor.authorMATUS, José Tomás
dc.date.accessioned2024-01-30T14:32:44Z
dc.date.available2024-01-30T14:32:44Z
dc.date.issued2023-08
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187638
dc.description.abstractEnVariegation is a rare type of mosaicism not fully studied in plants, especially fruits. We examined red and white sections of grape (Vitis vinifera cv. 'Bequignol') variegated berries and found that accumulation of products from branches of the phenylpropanoid and isoprenoid pathways showed an opposite tendency. Light-responsive flavonol and monoterpene levels increased in anthocyanin-depleted areas in correlation with increasing MYB24 expression. Cistrome analysis suggested that MYB24 binds to the promoters of 22 terpene synthase (TPS) genes, as well as 32 photosynthesis/light-related genes, including carotenoid pathway members, the flavonol regulator HY5 HOMOLOGUE (HYH), and other radiation response genes. Indeed, TPS35, TPS09, the carotenoid isomerase gene CRTISO2, and HYH were activated in the presence of MYB24 and MYC2. We suggest that MYB24 modulates ultraviolet and high-intensity visible light stress responses that include terpene and flavonol synthesis and potentially affects carotenoids. The MYB24 regulatory network is developmentally triggered after the onset of berry ripening, while the absence of anthocyanin sunscreens accelerates its activation, likely in a dose-dependent manner due to increased radiation exposure. Anthocyanins and flavonols in variegated berry skins act as effective sunscreens but for different wavelength ranges. The expression patterns of stress marker genes in red and white sections of 'Bequignol' berries strongly suggest that MYB24 promotes light stress amelioration but only partly succeeds during late ripening. MYB24 controls metabolic responses in skin sections of variegated grape berries lacking anthocyanin to cope with high-intensity and UV light stress, promoting terpene and flavonol accumulation.
dc.language.isoENen_US
dc.subjectExpression des gènes
dc.subjectVariégation
dc.subjectVitis Vinifera L
dc.subject.enVitis Vinifera L
dc.subject.enVariegation
dc.subject.enGenes expression
dc.title.enMYB24 orchestrates terpene and flavonol metabolism as light responses to anthocyanin depletion in variegated grape berries
dc.typeArticle de revueen_US
dc.identifier.doi10.1093/plcell/koad228en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalThe Plant cellen_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_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.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=The%20Plant%20cell&rft.date=2023-08&rft.au=ZHANG,%20Chen&DAI,%20Zhanwu&FERRIER,%20Thilia&ORDU%C3%91A,%20Luis&SANTIAGO,%20Antonio&rft.genre=article


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