Genetic Control of Grain Protein and Gluten Content: Winter vs. Spring Wheat.

ABSTRACT: Common wheat breeding programs prioritize the development of high grain protein content (GPC) varieties, as GPC influences milling efficiency and end-use quality. However, the molecular basis of protein and gluten accumulation in wheat grains remains insufficiently understood, particularly regarding genetic differences between spring and winter types. We analyzed 170 winter wheat varieties from diverse domestic and international breeding programs cultivated in the European part of Russia over two growing seasons. Genome-wide association study identified 26 markers linked to GPC and 23 to gluten content (p < 0.001), with the strongest associations on chromosomes 4A and 2D. Variation in NAM-A1 also significantly affected GPC: varieties with the NAM-A1d allele showed lowe

SUBMITTER: Kiseleva AA 

PROVIDER: S-EPMC12653508 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature