The team used zinc fingers that specifically target the IPK1 gene and then added bacterial DNA that would disrupt the gene while at the same time conferring herbicideresistance to the plant.
When they exposed tobacco cells to the zinc finger nucleases, they also added a version of that gene that enhances herbicideresistance.
他们在使烟草细胞接触锌指核酸酶之外，也添加了可增强抗除草剂特性的基因片段。
3
Since 1996, Monsanto has held a European patent on genes that give soya beans resistance to the company's Roundup herbicide - specifically the active ingredient glyphosate.