Characterization of Bunch Compactness in a Diverse Collection of Vitis vinifera L. Genotypes Enriched in Table Grape Cultivars Reveals New Candidate Genes Associated with Berry Number

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dc.article.number1308
dc.catalogadoraba
dc.contributor.authorMeneses, Marco
dc.contributor.authorMuñoz Espinoza, Claudia
dc.contributor.authorReyes Impellizzeri, Sofía
dc.contributor.authorSalazar, Erika
dc.contributor.authorMeneses Araya, Claudio Antonio
dc.contributor.authorHerzog, Katja
dc.contributor.authorHinrichsen, Patricio
dc.date.accessioned2025-11-20T15:23:36Z
dc.date.available2025-11-20T15:23:36Z
dc.date.issued2025
dc.description.abstractBunch compactness (BC) is a complex, multi-trait characteristic that has been studied mostly in the context of wine grapes, with table grapes being scarcely considered. As these groups have marked phenotypic and genetic differences, including BC, the study of this trait is reported here using a genetically diverse collection of 116 Vitis vinifera L. cultivars and lines enriched for table grapes over two seasons. For this, 3D scanning-based morphological data were combined with ground measurements of 14 BC-related traits, observing high correlations among both approaches (R-2 > 0.90-0.97). The multivariate analysis suggests that the attributes 'berries per bunch', 'berry weight and width', and 'bunch weight and length' could be considered as the main descriptors for BC, optimizing evaluation times. Then, GWASs based on a set of 70,335 SNPs revealed that GBS analysis in this same population enabled the detection of several SNPs associated with different sub-traits, with a locus for 'berries per bunch' in chromosome (chr) 18 being the most prominent. Enrichment analysis of significant and frequent SNPs found simultaneously in several traits and seasons revealed the over-representation of discrete functions such as alpha-linolenic acid metabolism and glycan degradation. In summary, the utility of 3D automated phenotyping was validated for table grape backgrounds, and new SNPs and candidate genes associated with the BC trait were detected. The latter could eventually become a selection tool for grapevine breeding programs.
dc.description.funderANID-FONDECYT; Folio: 1221410, 11190936
dc.fechaingreso.objetodigital2025-11-20
dc.format.extent25 páginas
dc.fuente.origenWOS
dc.identifier.doi10.3390/plants14091308
dc.identifier.eissn2223-7747
dc.identifier.scopusidSCOPUS_ID:105004828619
dc.identifier.urihttps://doi.org/10.3390/plants14091308
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107065
dc.identifier.wosidWOS:001486808000001
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Meneses Araya, Claudio Antonio; 0000-0002-6452-8950; 1246418
dc.issue.numero9
dc.language.isoen
dc.nota.accesocontenido completo
dc.publisherMDPI
dc.revistaPLANTS-BASEL
dc.rightsacceso abierto
dc.rights.licenseAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectbunch compactness
dc.subjectGBS
dc.subjectautomated phenotyping
dc.subjectGWAS
dc.subjectgrapevine
dc.subjecttable grape
dc.subject.ddc600
dc.titleCharacterization of Bunch Compactness in a Diverse Collection of Vitis vinifera L. Genotypes Enriched in Table Grape Cultivars Reveals New Candidate Genes Associated with Berry Number
dc.typeartículo
dc.volumen14
sipa.codpersvinculados1246418
sipa.trazabilidadWOS;2025-05-24
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