Molecular Phylogeny of Section Parrya of Pinus (Pinaceae) Based on Chloroplast matK Gene Sequence Data Phylogenetic analyses of some important Paris species basedon sequences of matK gene Phylogeny relationship and molecular identification of ten Huperzia species (Huperziaceae) based on matK gene sequences The utility of matK gene in the phylogenetic analysis of the genus Magnolia Apply matK gene to identify Nervilia fordii and its common adulterants The systematic relationship of the tribe Magnolieae and Michelieae --based on matK sequence analysis Effects of Total Alkaloids of Tripterygium Hypoglaucum Hutch on tk Gene of Mouse Lymphoma Cells