Genome-wide association studies for identification of QTLs and key candidate genes to improve grain quality in rice (<i>Oryza sativa</i> L.).

ABSTRACT: Grain quality is the key concern for rice breeders and is paramount to consumer acceptability. We characterized a diverse subset of 198 rice accessions of 3 K Rice Genome Project (RGP) for grain quality attributes, specifically glycemic index %, total dietary fibre, oil %, protein, amylose, moisture %, phytate, phenol, and starch content. A set of 5,53,229 single nucleotide polymorphism (SNP) markers obtained from the 3 K RG 1 M filtered SNP dataset used for genome wide association studies (GWAS). Consequently, we discovered 200 Quantitative trait nucleotides (QTNs) associated with the traits mentioned above distributed across the genome. These QTNs were grouped into 26 Quantitative Trait Loci (QTL) clusters, of which 20 clusters validated with at least three GWAS methods were considered r

SUBMITTER: Sachdeva S 

PROVIDER: S-EPMC12550801 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature