After tests of resistance to pest insects and analyses of PCR, RT-PCR and Southern blotting, the transgenic plants were proved to have expressed the API gene and to be resistant to cotton bollworm.

• 经对棉铃虫抗虫性鉴定和PCR、RT-PCR、Southern blotting分析,证明获得了表达API基因的抗虫棉。