该项研究应用基因工程技术，人工合成了可在植物中高效表达的GFMCrylA杀虫基因。在表达调控元件的合成方面，将8个表达调控序列构建在一起，构建了基因加倍双向植物表达载体。采用花粉管通道技术，将该基因导入目前我国棉花主栽品种泅棉3号和中棉12号，获得了5个抗虫转基因棉花 The study used genetic engineering techniques to artificially synthesize GFMCrylA insecticidal genes that are highly expressed in plants. In terms of the synthesis of expression regulatory elements, eight expression regulatory sequences were constructed together to construct a gene-doubling bidirectional plant expression vector. Using pollen tube channel technology, the gene was introduced into cotton varieties Cian Mian 3 and Zhongmian 12 at present in our country, obtaining 5 insect-resistant transgenic cotton