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dc.rights.licenseopenen_US
dc.contributor.authorWONG, D. C. J.
dc.contributor.authorLOPEZ GUTIERREZ, R.
dc.contributor.authorDIMOPOULOS, N.
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorGAMBETTA, Gregory
ORCID: 0000-0002-8838-5050
IDREF: 225449641
dc.contributor.authorCASTELLARIN, S. D.
dc.date.accessioned2020-03-27T11:01:58Z
dc.date.available2020-03-27T11:01:58Z
dc.date.issued2016
dc.identifier.issn1471-2164en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/3970
dc.description.abstractEnBackground In wine grape production, management practices have been adopted to optimize grape and wine quality attributes by producing, or screening for, berries of smaller size. Fruit size and composition are influenced by numerous factors that include both internal (e.g. berry hormone metabolism) and external (e.g. environment and cultural practices) factors. Combined physiological, biochemical, and transcriptome analyses were performed to improve our current understanding of metabolic and transcriptional pathways related to berry ripening and composition in berries of different sizes.[br/] [br/] Results The comparison of berry physiology between small and large berries throughout development (from 31 to 121 days after anthesis, DAA) revealed significant differences in firmness, the rate of softening, and sugar accumulation at specific developmental stages. Small berries had significantly higher skin to berry weight ratio, lower number of seeds per berry, and higher anthocyanin concentration compared to large berries. RNA-sequencing analyses of berry skins at 47, 74, 103, and 121 DAA revealed a total of 3482 differentially expressed genes between small and large berries. Abscisic acid, auxin, and ethylene hormone pathway genes were differentially modulated between berry sizes. Fatty acid degradation and stilbenoid pathway genes were upregulated at 47 DAA while cell wall degrading and modification genes were downregulated at 74 DAA in small compared to large berries. In the late ripening stage, concerted upregulation of the general phenylpropanoid and stilbenoid pathway genes and downregulation of flavonoid pathway genes were observed in skins of small compared to large berries. Cis-regulatory element analysis of differentially expressed hormone, fruit texture, flavor, and aroma genes revealed an enrichment of specific regulatory motifs related to bZIP, bHLH, AP2/ERF, NAC, MYB, and MADS-box transcription factors.[br/] [br/] Conclusions The study demonstrates that physiological and compositional differences between berries of different sizes parallel transcriptome changes that involve fruit texture, flavor, and aroma pathways. These results suggest that, in addition to direct effects brought about by differences in size, key aspects involved in the regulation of ripening likely contribute to different quality profiles between small and large berries.
dc.language.isoENen_US
dc.subjectArôme
dc.subjectFlavonoïde
dc.subjectVin
dc.subjectBaie de raisin
dc.subjectVitis Vinifera
dc.subjectTaille du fruit
dc.subject.enRna-Seq
dc.subject.enAroma
dc.subject.enCell Wall
dc.subject.enFlavonoid
dc.subject.enGrapevine
dc.subject.enHormone
dc.subject.enPromoter
dc.subject.enQuality
dc.subject.enSecondary Metabolism
dc.subject.enTranscriptomics
dc.title.enCombined physiological, transcriptome, and cis-regulatory element analyses indicate that key aspects of ripening, metabolism, and transcriptional program in grapes (Vitis vinifera L.) are differentially modulated accordingly to fruit size
dc.typeArticle de revueen_US
dc.identifier.doi10.1186/s12864-016-2660-zen_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalBMC Genomicsen_US
bordeaux.page22 p.en_US
bordeaux.volume17en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.issue1en_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-02521197
hal.version1
hal.date.transferred2020-03-27T11:02:05Z
hal.exporttrue
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