[Application of molecular biotechnology in Pharmacognosy].

Using the methods of informetrics analysis, articles retrieved from the database of CNKI were statistically analyzed on development course and knowledge system, so as to reflect the overall situation of pharmacognostical studies by molecular biotechnology. The result shows that the research on pharmacognosy by molecular biotechnology is an inter-disciplinary research area, the major research fields can be divided into 7 categories, including molecular identification of Chinese medicinal materials, molecular systematics and genetic diversity analysis of Chinese medicinal materials, biosynthesis and bioregulation of secondary metabolites in medicinal plants, molecular mechanism and genetic basis of Dao-di Herbs, and tissue culture and molecular breeding in medicinal plants. The research on pharmacognosy by molecular have achieved remarkable progress in recent 20 years, and have broad development prospects.