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Year and Flavescence dorée phytoplasma infection: impact on gene expression in two grapevine varieties

hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorCORIO-COSTET, Marie-France
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorBODIN, Enora
hal.structure.identifierSanté et agroécologie du vignoble [UMR SAVE]
dc.contributor.authorLAURENS, Marie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorDUBOIS, Laure
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorMALEMBIC-MAHER, Sylvie
hal.structure.identifierBiologie du fruit et pathologie [BFP]
dc.contributor.authorEVEILLARD, Sandrine
dc.date.accessioned2025-07-26T02:08:15Z
dc.date.available2025-07-26T02:08:15Z
dc.date.issued2025-05
dc.identifier.issn0304-4238
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/207383
dc.description.abstractEn<div><p>Flavescence dorée (FD) is a severe phytoplasma disease affecting grapevine (Vitis vinifera) in Europe, significantly impacting plant gene expression. This study aimed to (i) identify in natura gene expression differences between a highly susceptible cultivar (Cabernet Sauvignon) and a less susceptible one (Merlot), (ii) understand plant responses to FD phytoplasma (FDp) infection, and (iii) possibly identify molecular markers associated with lower susceptibility to FD. The expression of 95 grapevine genes was analysed by high-throughput RT-qPCR on symptomatic, non-symptomatic, and healthy branches collected in vineyards over two consecutive years.</p><p>Comparative analysis revealed cultivar-specific responses to FDp infection, year-specific expression patterns, and commonly modulated genes that could serve as markers of infection, health status, or varietal identity. Three genes were consistently down-regulated in Merlot compared to Cabernet Sauvignon, supporting the existence of varietal markers linked to genetic background. Several genes were specifically modulated in infected Merlot plants, including those related to defense and cell wall reinforcement, potentially contributing to restricted FDp movement. Non-symptomatic branches from infected vines showed intermediate expression profiles, suggesting systemic signaling or early responses.</p><p>These findings highlight the complex interaction between grapevine genotype, environmental conditions, and pathogen infection, providing a basis for identifying molecular markers and improving strategies to manage FD in vineyards.</p></div>
dc.language.isoen
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enFlavescence doree phytoplasma
dc.subject.enRT-qPCR
dc.subject.enHigh-throughput gene expression
dc.subject.enMolecular markers
dc.subject.enVitis vinifera
dc.subject.enVineyard
dc.title.enYear and Flavescence dorée phytoplasma infection: impact on gene expression in two grapevine varieties
dc.typeArticle de revue
dc.identifier.doi10.1016/j.scienta.2025.114190
dc.subject.halSciences de l'environnement
bordeaux.journalScientia Horticulturae
bordeaux.page114190
bordeaux.volume347
bordeaux.hal.laboratoriesBiologie du Fruit & Pathologie (BFP) - UMR 1332*
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-05186211
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-05186211v1
bordeaux.COinSctx_ver=Z39.88-2004&amp;rft_val_fmt=info:ofi/fmt:kev:mtx:journal&amp;rft.jtitle=Scientia%20Horticulturae&amp;rft.date=2025-05&amp;rft.volume=347&amp;rft.spage=114190&amp;rft.epage=114190&amp;rft.eissn=0304-4238&amp;rft.issn=0304-4238&amp;rft.au=CORIO-COSTET,%20Marie-France&amp;BODIN,%20Enora&amp;LAURENS,%20Marie&amp;DUBOIS,%20Laure&amp;MALEMBIC-MAHER,%20Sylvie&amp;rft.genre=article


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