关键词: 乳酸菌, 食品级载体, 筛选标记

Abstract: Development of food-grade vector is the key point to exploit the potential application of lactic acid bacteria. Selection markers are the important ingredient of the vector, and it is also a hot research spot of the genetics of lactic acid bacteria at present. In the article, the foreign and domestic food-grade selection markers system, including dominant selection markers and comple- ment selection markers were reviewed, in order to provide valuable references for the further study of the food-grade selection markers system.

Key words: lactic acid bacteria, food-grade vector, selection marker