title: Chemical and genetic differentiation of Ligularia tsangchanensis in Yunnan and Sichuan provinces of China.
abstract: The intraspecific diversity in L. tsangchanensis collected in the Chinese Provinces Yunnan and southwestern Sichuan was studied by chemical and genetic approaches. The samples collected in Yunnan were found to contain cacalol (1) as the sole major component, while samples from Sichuan contained 7alpha- and 7beta-eremophila-9,11-dien-8-one (5 and 6) as well as the 3alpha-angeloyloxy derivative 7 as major components. In addition, the sequences of the internal transcribed spacers (ITSs) of the ribosomal RNA gene indicated that the Yunnan and the Sichuan samples constitute separate clades. These results demonstrate that L. tsangchanensis in Yunnan and Sichuan are distinct.
authors: Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan.
authors: Atsushi
authors: A
authors: Torihata
authors: Ryo
authors: R
authors: Hanai
authors: Xun
authors: X
authors: Gong
authors: Yuemao
authors: Y
authors: Shen
authors: Chiaki
authors: C
authors: Kuroda
mesh_terms: D019659:Asteraceae / Q000737:chemistry* / Q000235:genetics*; D002681:China; D014644:Genetic Variation / Q000235:genetics*; D010936:Plant Extracts / Q000737:chemistry / Q000235:genetics; D018517:Plant Roots / Q000737:chemistry / Q000235:genetics
chemical_list: D010936:Plant Extracts