This study was supported by the National Natural Science Foundation of China(U1803233).The authors thank Prof.Kathreen RUCKSTUHL and Dr.WANG Muyang for their helpful suggestions on this manuscript.
Since 1996, transgenic Bacillus thuringiensis(Bt) cotton has been commercially grown in numerous countries in an effort to stem the losses caused by key lepidopteran pests. However, the development of pest resistance ...