Uncovering genetic determinants of antioxidant properties in Thai landrace rice through genome-wide association analysis.

ABSTRACT: Pigmented rice (Oryza sativa L.) is recognized as a source of natural antioxidant compounds, such as flavonoids, oryzanol, tocopherol, and anthocyanin. Because of their nutritional benefits, anthocyanin-enriched or pigmented rice varieties are feasible alternatives for promoting human health. Pigment biosynthesis in rice is a complex process that involves multiple biosynthetic and regulatory genes. This study aimed to identify the genes associated with antioxidant traits in local Thai rice and develop molecular markers for breeding programs. Single nucleotide polymorphisms (SNPs) in 233 rice cultivars, 119,541 SNPs from the promoters, and the first 5 exons of all genes were associated with antioxidant phenotypes determined using 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid), 2,2-

SUBMITTER: Purnama PR 

PROVIDER: S-EPMC11718077 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature