Hyperspectral imaging of grains uncovers the genetic architecture of nitrogen response of development in bread wheat.

ABSTRACT: Unraveling the genetic architecture of nitrogen response of development is critical for improving wheat productivity while reducing nitrogen inputs. In this study, hyperspectral imaging (HSI) was applied to wheat grains obtained from nitrogen-deficient and normal conditions, combined with genome-wide association studies (GWAS), to investigate the nitrogen response of development in a diverse wheat panel. The 1,792 i-traits were acquired via hyperspectral imaging system, which reflect detailed phenotypic assessments of wheat development, capturing subtle variations in nitrogen response. A total of 3,556 significant loci and 3,648 candidate genes were identified. Key candidate genes involved in nitrogen uptake and utilization were identified by integrating agronomic traits with i-traits, inc

SUBMITTER: Liu Q 

PROVIDER: S-EPMC12583357 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature