Biotechnological and Oenological Potential of Advanced Genetic Lines of Grapevine Resistant to Powdery Mildew (Erysiphe necator)

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dc.article.number2267
dc.catalogadoraba
dc.contributor.authorOrmeño Vásquez, Phillip
dc.contributor.authorSosa Zuniga, Viviana
dc.contributor.authorGil Cortiella, Mariona
dc.contributor.authorMorales Poblete, René Eduardo
dc.contributor.authorVallejos, Carolina
dc.contributor.authorMedina, Consuelo
dc.contributor.authorMeneses Araya, Claudio Antonio
dc.contributor.authorArce Johnson, Patricio
dc.date.accessioned2025-11-19T21:35:04Z
dc.date.available2025-11-19T21:35:04Z
dc.date.issued2025
dc.description.abstractThe development of grapevine varieties combining powdery mildew (Erysiphe necator) resistance with acceptable wine quality represents an important goal for sustainable viticulture. This study evaluated the oenological potential of five advanced breeding lines carrying Run1 or Run1Ren1 resistance loci, developed through marker-assisted selection to achieve 99.2–99.6% Vitis vinifera genome content. Genotypes were assessed under Chilean conditions during the 2024–2025 seasons, analyzing disease resistance, berry characteristics, and wine chemical parameters. All resistant genotypes exhibited complete powdery mildew resistance (OIV scores 9) without fungicide applications. Wine analyses showed pH 3.4–3.9, titratable acidity 3.7–7.8 g/L, and total phenolics 229.2–1356.1 mg GAE/L, values within ranges reported in the literature for commercial wines. Two genotypes evaluated across both seasons showed different patterns of year-to-year variation, with AJ-T2 showing 4.7% variation in anthocyanin content, while AJ-T6 exhibited greater variation in phenolic parameters. HPLC analysis revealed anthocyanin profiles dominated by malvidin-3-glucoside without diglucoside forms, consistent with V. vinifera patterns. These preliminary results from single-plant evaluations suggest that marker-assisted breeding may contribute to developing disease-resistant varieties with wine chemical parameters within commercial ranges, though multi-plant trials with appropriate controls are essential for validation.
dc.fechaingreso.objetodigital2025-11-19
dc.format.extent18 páginas
dc.fuente.origenORCID
dc.identifier.doi10.3390/agriculture15212267
dc.identifier.issn2077-0472
dc.identifier.urihttps://doi.org/10.3390/agriculture15212267
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107054
dc.identifier.wosidWOS:001612376000001
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Meneses Araya, Claudio Antonio; 0000-0002-6452-8950; 1246418
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Morales Poblete, René Eduardo; S/I; 1158452
dc.issue.numero21
dc.language.isoen
dc.nota.accesocontenido completo
dc.revistaAgriculture
dc.rightsacceso abierto
dc.rights.licenseAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectOenological
dc.subjectGrapevine
dc.subjectMarker-assisted selection
dc.subjectPerformance
dc.subjectPowdery mildew
dc.subjectResistance locus
dc.subjectRun1
dc.subject.ddc600
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleBiotechnological and Oenological Potential of Advanced Genetic Lines of Grapevine Resistant to Powdery Mildew (Erysiphe necator)
dc.typeartículo
dc.volumen15
sipa.codpersvinculados1246418
sipa.codpersvinculados1158452
sipa.trazabilidadORCID;2025-11-17
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