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The study aims to identify genetic factors influencing iron accumulation in adzuki bean seeds.

April 12, 2026BMC Plant BiologyOpen Access

Unveiling genetic loci and natural alleles for seed iron accumulation in adzuki bean via genome-wide association study

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GWAS identifies genetic variants enhancing seed iron content in adzuki bean, suggesting pathways for biofortification.

The study aims to identify genetic factors influencing iron accumulation in adzuki bean seeds.
Conducted a genome-wide association study (GWAS) on 320 adzuki accessions with multi-environment phenotyping.
Analyzed iron content variations between wild and cultivated adzuki beans over multiple years.
Identified 39 quantitative trait loci (QTLs) related to iron content across chromosomes 1 to 11.
Wild adzuki beans showed significantly higher iron concentrations compared to cultivated types.
Identified 39 QTLs linked to iron content, with specific candidate genes implicated in iron transport and regulation.
Functional variations in key genes like VaIRT1 were associated with significant differences in iron accumulation.

Wen et al. (2026) studied this question.

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