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Overlapping chemical and genetic diversity in Ligularia lamarum and Ligularia subspicata. Isolation of ten new eremophilanes and a new seco-bakkane compound |
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| Authors: | Yoshinori SaitoMasato Hattori Yuko IwamotoYuriko Takashima Kanako MiharaYoko Sasaki Miho FujiwaraMisato Sakaoku Anna ShimizuXun Chao Chiaki Kuroda Xun Gong Ryo Hanai Motoo Tori |
| Institution: | a Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan b Department of Life Science, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan c Department of Chemistry and Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan d Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China |
| Abstract: | Root chemicals and DNA sequences were analyzed for Ligularialamarum samples collected in Yunnan and Sichuan Provinces of China and the relationship between the plant and Ligulariasubspicata, its taxonomically closest species, was examined. Both species produce furanoeremophilanes and eremophilan-8-one derivatives as the major components. Eleven new compounds, including a new seco-bakkane compound, were isolated. The two species were found to harbor overlapping intra-specific diversities with respect to the chemicals and the DNA sequences. |
| Keywords: | Ligularia lamarum Ligularia subspicata Furanoeremophilane Sesquiterpenoid atpB-rbcL ITS |
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