Finally, on the basis of the established transformation protocol, rolB-pttGA20ox genes were stably transferred to the Populus alba by PCR and Southern blotting tests.

• 最后在此基础上,进行rolB-pttGA20ox双价基因的转化,并由PCR、Southern杂交和形态特征差异检测,以证明是否为转化植株。