A Genome‑wide Association Study of the Grain Ionome in Rice Oryza Sativa Ssp. Japonica under Two Diverse Water Management Systems.

ABSTRACT: Rice is an important human staple food providing calories and useful elements, even though vulnerable to heavy metal contamination. Breeding tools for improving the concentration of nutrient and reduce levels of toxic compounds can improve the nutritional value and safety of rice grains. This work presents a comprehensive analysis of the genetic bases controlling variation in the rice ionome employing genome-wide association studies (GWAS) with a diversity panel of 294 temperate and tropical japonica accessions, each genotyped with 36,830 SNP loci. GWAS was performed for brown rice content of 13 elements: As, Ca, Cd, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, P, Zn for rice plants grown under two diverse water management regimes, permanent flooding and limited watering. GWAS identified 232 significant

SUBMITTER: Orasen G 

PROVIDER: S-EPMC12494520 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature