Deciphering Drought Response Mechanisms in Oat Through Comprehensive Transcriptomic and Physiological Analysis.

ABSTRACT: Oat, an important cereal and forage crop, is significantly affected by drought stress during production. However, the molecular mechanisms underlying oat's response to drought stress remain largely unknown. In this study, K-means clustering classified 28 oat varieties into drought-tolerant (Muda, Mengshi No. 1) and drought-sensitive (Heike, Haywire) groups, with grey relational analysis further verifying MS as the most drought-tolerant and HK as the most drought-sensitive variety. Under drought stress, drought-tolerant and drought-sensitive varieties showed notable differences in leaf chlorophyll content, osmoregulation substances, and the activities of antioxidant enzymes. Transcriptomic analysis showed that 1915 differentially expressed genes (DEGs) were shared among all comparisons betw

SUBMITTER: Wang B 

PROVIDER: S-EPMC12899507 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature