Target transgenic plant families in the T_1 generation were selected based on four criteria: (1) high insect resistance, (2) no obvious phenotypic changes, (3) a single copy of the transgene, and (4) Mendel segregation.

• 蛋白含量的ELISA测定结果表明：不同转基因株系的Bt蛋白表达量不同，转cry1C~*基因株系的蛋白表达量最高为1.；42ng/mg鲜叶重，转cry1Ab基因株系的蛋白表达量最高为3