Application of Brassica napus BnaALaAT1 gene in breeding plant varieties with stress resistance and high yield
By genetic transformation and expression vector construction of the rapeseed BnaALaAT1 gene, the trade-off between stress resistance and yield in rapeseed breeding was solved, achieving high and stable yields under adverse conditions and improving the stress resistance and yield of rapeseed.
Patent Information
- Application Number
- CN202511821447.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-03-27
- Estimated Expiration
- 2045-12-05
AI Technical Summary
In existing rapeseed breeding, there is a trade-off between stress resistance and yield. Traditional methods are difficult to maintain high and stable yields under adverse conditions, and the screened stress resistance genes lose their function under combined field stress, affecting the stability of rapeseed production.
Genetic transformation of the rapeseed BnaALaAT1 gene was used to construct an overexpression vector. Pure lines of the versatile gene were obtained through Agrobacterium-mediated transformation. This gene regulates multiple stress response mechanisms in plants, enhances their survival ability, and achieves synergistic optimization of stress resistance and high yield by optimizing carbon and nitrogen metabolism and coordinating resource allocation.
It significantly improved the growth status of transgenic plants under adverse conditions, increasing yield by 53.7% and oil content by 23%, breaking the bottleneck in the trade-off between stress resistance and yield, achieving high and stable yields under adverse conditions, and providing an efficient genetic solution.