A novel global Capsicum core collection delivers candidate genes for robust agronomic QTLs through a multi-environment GWAS approach
2023
McLeod, Louis | Barchi, Lorenzo | Tumino, Giorgio | Tripodi, Pasquale | Giuliano, Giovanni | Voorrips, Roeland | Paran, Ilan | Lefebvre, Véronique | Génétique et Amélioration des Fruits et Légumes (GAFL) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Arboriculture et maraîchage méditerranéens (A2M) ; Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) | Università degli studi di Torino = University of Turin (UNITO) | Wageningen University and Research [Wageningen] (WUR) | Centro di Viticoltura ed Enologia [CREA] ; Consiglio per la Ricerca in Agricoltura e l’analisi dell’economia agraria = Council for Agricultural Research and Economics (CREA) | Agenzia Nazionale per le nuove Tecnologie, l’energia e lo sviluppo economico sostenibile = Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) | Agricultural Research Organisation (ARO) ; Volcani Center | Crops Research Institute (MVCRI) | Center of Plant Systems Biology and Biotechnology (CPSBB) | European Project: 677379,H2020,H2020-SFS-2015-2,G2P-SOL(2016) | European Project: 101094738,PRO-GRACE
International audience
اظهر المزيد [+] اقل [-]إنجليزي. Deciphering the genetic architecture of quantitative traits through genome-wide association mapping on core collections paves the way for breeding adapted crops. We constructed the G2P-SOL pepper world core collection, a set of 423 Capsicum spp. accessions of great genotypic and phenotypic variability, representing the diversity of more than 10,000 pepper accessions from 10 major genebanks. To tackle the modulation of complex quantitative traits by the environment and by the genotype-by-environment (GxE) interaction effects, a highly diverse subset of 350 C. annuum accessions was extensively phenotyped in a multi-location effort. Multi-environment genome-wide association studies (GWAS) were conducted for 23 agronomic traits pertaining to fruit flavor, color, size and shape, and to plant productivity, vigor and precocity. Robust QTLs and environment-specific QTLs were thus detected, and 97 well-known and new genes potentially underlying 53 of the most high-confidence and robust QTLs were highlighted. These results assert the usefulness and universality of the G2P-SOL core collection, which will be available upon request for the pepper community, alongside the genotypic and phenotypic data collected as part of the G2P-SOL project. This unique resource will be a key asset in accelerating gene discovery, developing genetic markers for marker-assisted selection, and breeding pepper varieties adapted to various climatic environments.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Institut national de la recherche agronomique