title: Chemical Lineages of Ligularia fischeri.
abstract: Six Ligularia fischeri samples, two from Sichuan (samples 1 and 2) and four from Chongqing (samples 3-6), were examined for root chemicals and the DNA sequence of the internal transcribed spacers of the ribosomal RNA gene. Samples 2 and 3 contained benzofurans. The isolation of benzofurans shows that the chemical diversity in L. fischeri is higher than previously reported. Samples 1, 4, 5, and 6 contained eremophilanes. However, the compounds were different between sample 1 and samples 4-6, indicating variation within eremophilane producers. DNA data indicated that introgression could be a mechanism of benzofuran production in sample 2 and that sample 1 and samples 4-6 were genetically separate.
authors.forename: Chiaki
authors.initials: C
authors.lastname: Kuroda
authors.forename: Chiemi
authors.initials: C
authors.lastname: Shibayama
authors.forename: Kyosuke
authors.initials: K
authors.lastname: Inoue
authors.forename: Yasuko
authors.initials: Y
authors.lastname: Okamoto
authors.forename: Motoo
authors.initials: M
authors.lastname: Tori
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Saito
authors.forename: Ryo
authors.initials: R
authors.lastname: Hanai
authors.forename: Xun
authors.initials: X
authors.lastname: Gong
mesh_terms: D000595:Amino Acid Sequence; D019659:Asteraceae / Q000737:chemistry / Q000235:genetics / Q000378:metabolism*; D001483:Base Sequence; D002681:China; D021903:DNA, Ribosomal Spacer / Q000235:genetics; D003710:Demography; D018506:Gene Expression Regulation, Plant / Q000502:physiology; D015394:Molecular Structure; D010802:Phylogeny; D010940:Plant Proteins / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D013045:Species Specificity
chemical_list: D021903:DNA, Ribosomal Spacer; D010940:Plant Proteins