Understanding of the application of biological safety marker genes in genetically modified crops

• 1、School of environmental science and engineering, Tianjin University,300072
• 2、School of Marine Science and Technology,HuaiHai Institute of Technology,Jiangsu 22200
• 3、Chinese Academy of Agricultural Sciences, Beijing 100081Chinese Academy of Agricultural Sciences, Beijing 100081
• 4、School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200436

Abstract：With the expansion of acreage of genetically modified plants and the deepening of the commercialization, people pay more and more attention on the safety of genetically modified crops , and select Security marker gene in transgenic crops became the focus of attention, especially whether the antibiotic resistance marker gene and herbicides used in the process of screening transgenic crops put human health and the environment at risk. The development and use of biological safety marker gene 6-phosphate isomerase gene (pmi), xylose isomerase gene (xylA), glutamic acid 1-semialdehyde aminotransferase gene (hemL), aspartate kinase (ak) gene, betaine aldehyde dehydrogenase (badh) gene and the like, can be removed notonly to antibiotics and herbicides as a selection marker in terms of safety concerns, but also can improve the conversion efficiency.

Keywords： plant genetically modified biosafety marker genes