Related Experiment Video
Updated: Jul 1, 2026

Breeding by Design for Functional Rice with Genome Editing Technologies
Published on: January 3, 2025
Over-expression of OsDREB genes lead to enhanced drought tolerance in rice
Jian-Qiang Chen1, Xiu-Ping Meng, Yun Zhang
1College of Life Sciences, Beijing Normal University, Beijing, 100875, People's Republic of China.
Abstract:
The DREB transcription factors, which specifically interact with C-repeat/DRE (A/GCCGAC), play an important role in plant abiotic stress tolerance by controlling the expression of many cold or/and drought-inducible genes in an ABA-independent pathway. We have isolated three novel rice DREB genes, OsDREB1E, OsDREB1G, and OsDREB2B, which are homologous to Arabidopsis DREB genes. The yeast one-hybrid assay indicated that OsDREB1E, OsDREB1G, and OsDREB2B can specifically bind to the C-repeat/DRE element. To elucidate the function of respective OsDREB genes, we have stably introduced these to rice by Agrobacterium-mediated transformation. Transgenic rice plants analysis revealed that over-expression of OsDREB1G and OsDREB2B in rice significantly improved their tolerance to water deficit stress, while over-expression of OsDREB1E could only slightly improved the tolerance to water deficit stress, suggesting that the OsDREBs might participate in the stress response pathway in different manners.
Related Concept Videos
Responses to Drought and Flooding
Responses to Salt Stress
Adaptations that Reduce Water Loss
Regulation of Transpiration by Stomata
Osmoregulation in Insects
Gene Regulation During Sporulation