Tobacco, originated from Southern America, is an important economic plant in theworld. It plays an important role in the economic construction of China, which has largestoutput and consumption of tobacco in the world. The initiatory research about molecularmarker technology and genetic diversity of tobacco has made some achievements since themid-1990's, but still it is behind the researches done into other plants, comparativelyspeaking, only the RAPD marker is used frequently while other markers a...