Improvement of Perennial Ryegrass (Lolium Perenne) Tolerance to Drought by Gene Transferring of Stress-inducible Transcription Factors DREB1B and CBF1 Gene
Drought is the most important factor causing stress environment in the north-west area of china, and it seriously affects plant growth. The aims of this research are 1) to establish the breeding system of transgenic perennial ryegrass, and 2) to transfer the drought-tolerant genes into perennial ryegrass in order to enhance its tolerance ability of water stress.Four expression vectors of pBAC123 and pBAC128, pBAC122 and pBAC127 were constructed, and they all contain the drought-inducible expression promoter...