biostudies-literatureUnknown14(1)Rahman HQuinoa (Chenopodium quinoa Willd.), an Andean crop, is a facultative halophyte food crop recognized globally for its high nutritional value and plasticity to adapt to harsh conditions. We conducted a genome-wide association study on a diverse set of quinoa germplasm accessions. These accessions were evaluated for the following agronomic and biochemical traits: days to 50% flowering (DTF), plant height (PH), panicle length (PL), stem diameter (SD), seed yield (SY), grain diameter (GD), and thousand-grain weight (TGW). These accessions underwent genotyping-by-sequencing using the DNBSeq-G400R platform. Among all evaluated traits, TGW represented maximum broad-sense heritability. Our study revealed average SNP density of ≈ 3.11 SNPs/10 kb for the whole genome, with the lowest and highest on cScientific reports9205https://www.ebi.ac.uk/biostudies/studies/S-EPMC11035704biostudies-literatureMining genomic regions associated with agronomic and biochemical traits in quinoa through GWAS.PMC11035704Mehta LSingh RKHu YGkanogiannis ASuryanarayanan PVikram PRahman HBecerra Lopez-Lavalle LAMueller-Roeber BThushar SBalazadeh SWei TTanaji AAsthana SQuadros CShahid MfalseMining genomic regions associated with agronomic and biochemical traits in quinoa through GWAS.Quinoa (Chenopodium quinoa Willd.), an Andean crop, is a facultative halophyte food crop recognized globally for its high nutritional value and plasticity to adapt to harsh conditions. We conducted a genome-wide association study on a diverse set of quinoa germplasm accessions. These accessions were evaluated for the following agronomic and biochemical traits: days to 50% flowering (DTF), plant height (PH), panicle length (PL), stem diameter (SD), seed yield (SY), grain diameter (GD), and thousand-grain weight (TGW). These accessions underwent genotyping-by-sequencing using the DNBSeq-G400R platform. Among all evaluated traits, TGW represented maximum broad-sense heritability. Our study revealed average SNP density of ≈ 3.11 SNPs/10 kb for the whole genome, with the lowest and highest on c2024-01-01T00:00:00Z2024 Apr2026-06-01T19:58:38.372Z2026-05-20T03:08:00.178ZS-EPMC110357043864973810.1038/s41598-024-59565-8