title: High diversity of Ligularia dictyoneura in chemical composition and DNA sequence.
abstract: The chemical composition of root extracts of the title species collected at 20 different places in the Hengduan Mountains of China was examined. From these samples, a total of 17 eremophilane derivatives were isolated, three of which were new franoeremophilane derivatives: 3beta-acetoxy-6beta-(angeloyloxy)furanoeremophilan-10beta-ol, 1alpha-acetoxyfuranoeremophilan-15,6alpha-olide, and 6beta-[2-(hydroxymethyl)prop-2-enoyloxy]furanoeremophil-1(10)-ene. Based on the chemical composition, the samples could be classified into as many as seven types: one type containing non-furanoeremophilane derivatives and the other six containing furanoeremophilane derivatives with different oxidation levels. Results of DNA sequencing of the atpB-rbcL region and the internal transcribed spacers of the ribosomal RNA gene also indicated a high diversity in the species.
authors: Department of Chemistry, Ochanomizu University, Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan. nagano.hajime@ocha.ac.jp
authors: Hajime
authors: H
authors: Nagano
authors: Yukiko
authors: Y
authors: Iwazaki
authors: Mika
authors: M
authors: Matsushima
authors: Masahiko
authors: M
authors: Sato
authors: Xun
authors: X
authors: Gong
authors: Yuemao
authors: Y
authors: Shen
authors: Hiroshi
authors: H
authors: Hirota
authors: Chiaki
authors: C
authors: Kuroda
authors: Ryo
authors: R
authors: Hanai
mesh_terms: D019659:Asteraceae / Q000737:chemistry* / Q000235:genetics*; D001483:Base Sequence; D018744:DNA, Plant / Q000235:genetics*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry
chemical_list: D018744:DNA, Plant; D010936:Plant Extracts