首页|Dissecting the complex genetic basis of pre-and post-harvest traits in Vitis vinifera L.using genome-wide association studies

Dissecting the complex genetic basis of pre-and post-harvest traits in Vitis vinifera L.using genome-wide association studies

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Addressing the pressing challenges in agriculture necessitates swift advancements in breeding programs,particularly for perennial crops like grapevines.Moving beyond the traditional biparental quantitative trait loci(QTL)mapping,we conducted a genome-wide association study(GWAS)encompassing 588 Vitis vinifera L.cultivars from a Chilean breeding program,spanning three seasons and testing 13 key yield-related traits.A strong candidate gene,Vitvi11g000454,located on chromosome 11 and related to plant response to biotic and abiotic stresses through jasmonic acid signaling,was associated with berry width and holds potential for enhancing berry size in grape breeding.We also mapped novel QTL associated with post-harvest traits across chromosomes 2,4,9,11,15,18,and 19,broadening our grasp on the genetic intricacies dictating fruit post-harvest behavior,including decay,shriveling,and weight loss.Leveraging gene ontology annotations,we drew parallels between traits and scrutinized candidate genes,laying a robust groundwork for future trait-feature identification endeavors in plant breeding.We also highlighted the importance of carefully considering the choice of the response variable in GWAS analyses,as the use of best linear unbiased estimators(BLUEs)corrections in our study may have led to the suppression of some common QTL in grapevine traits.Our results underscore the imperative of pioneering non-destructive evaluation techniques for long-term conservation traits,offering grape breeders and cultivators insights to improve post-harvest table grape quality and minimize waste.

Julian García-Abadillo、Paola Barba、Tiago Carvalho、Viviana Sosa-Zu?iga、Roberto Lozano、Humberto Fanelli Carvalho、Miguel Garcia-Rojas、Erika Salazar、Julio Isidro y Sánchez

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Centro de Biotecnología y Genómica de Plantas,Universidad Politécnica de Madrid(UPM)-Institute Nacional de Investigación y Tecnología Agraria y Alimentaria(INIA),Campus de Montegancedo-Pozuelo de Alarcón,28223,Madrid,Spain

Genetic Resources Unit and Germplasm Bank,La Platina,Instituto de Investigaciones Agropecuarias,Av Santa Rosa 11610,La pintana,Santiago,Chile

Sun World International,28994 Gromer Av,Wasco,93280,California,USA

Freelance,Madrid,Spain

Instituto de Ciencias Químicas y Aplicadas(ICQA),Universidad Autónoma de Chile,El Llano Subercaseaux 2801,Santiago,Chile

Ginkgo Bioworks,Boston,Massachusetts,USA

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ANID FONDECYTCORFO INNOVA 09PMG-7229 and INIA/MINAGRIBeatriz Galindo ProgramMinisterio de Educación y Formación Profesional of SpainSevero Ochoa Program for Centres of Excellence in Research and Development from the"Agencia Estatal de Investigaci6n"of Spai"Programa Propio I+D+I"financed by the Universidad Politécnica de MadridEuropean Union's Horizon research and innovation program(2020)CORFO-UC Davis Chile ProjectINIA/MINAGRI Conservation of Genetic Resources Program

11161044code 500495-70BEAGAL18/00115SEV-2016-067281814413CEI2-21852Code 501453-70

2024

10.1093/hr/uhad283

园艺研究(英文)

园艺研究(英文)

CSTPCD
ISSN：
年,卷(期)：2024.11(2)
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