Abstract
Ligularia fischeri (Gom-chi) and Ligularia stenocephala (Gon-dal-bi) are popular edible herbs in Korea. L. fischeri is used to treat jaundice, hepatitis, rheumatoid arthritis, and scarlet fever, while L. stenocephala is used to treat anxiety, weakness, and menstrual disorders. The herbal medicinal activities of these two herbs differ, but they are very difficult to distinguish based on their morphologies, especially in their dried forms. In an effort to distinguish these two plant species, we sequenced three barcoding genes in plastids, matK, rbcL, and trnH-psbA. From the analysis of sequence variations, we detected five single nucleotide polymorphisms (SNPs) between two the species. Allele specific (AS)-primers in the SNPs were employed in discrimination of the two species. Of the five AS-primer sets, one primer pair in matK gene showed reproducibly distinguishable PCR amplification between plants of L. fischeri and L. stenocephala. The method is reproducible and efficient, and is the first reported molecular method to discriminate between L. fischeri and L. stenocephala.
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This study was supported by a 2014 Research Grant from Kangwon National University.
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Jin Choi, Rahul Vasudeo Ramekar, Yong Bog Kim, Se Won Kim, Hee Sun Noh, Ju Kyong Lee, Nam Il Park, Ik Young Choi, Seon-Kang Choi and Kyong Cheul Park declare that they do not have conflict of interest.
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Seong Jin Choi and Rahul Vasudeo Ramekar have contributed equally to this work.
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Choi, S.J., Ramekar, R.V., Kim, Y.B. et al. Molecular authentication of two medicinal plants Ligularia fischeri and Ligularia stenocephala using allele-specific PCR (AS-PCR) strategy. Genes Genom 39, 913–920 (2017). https://doi.org/10.1007/s13258-017-0554-3
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DOI: https://doi.org/10.1007/s13258-017-0554-3