A high-resolution genome-wide association study of the grain ionome and agronomic traits in rice Oryza sativa subsp. indica.

ABSTRACT: This study presents a comprehensive study of the genetic bases controlling variation in the rice ionome employing genome-wide association studies (GWAS) with a diverse panel of indica accessions, each genotyped with 5.2 million markers. GWAS was performed for twelve elements including B, Ca, Co, Cu, Fe, K, Mg, Mn, Mo, Na, P, and Zn and four agronomic traits including days to 50% flowering, grain yield, plant height and thousand grain weight. GWAS identified 128 loci associated with the grain elements and 57 associated with the agronomic traits. There were sixteen co-localization regions containing QTL for two or more traits. Fourteen grain element quantitative trait loci were stable across growing environments, which can be strong candidates to be used in marker-assisted selection to impro

SUBMITTER: Cu ST 

PROVIDER: S-EPMC8478900 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature