Abstract
In order to develop an efficient identification method for Fallopia plants and drugs, molecular analysis of the partial matK gene sequences was performed on 6 Fallopia species. Based on the matK sequences, a phylogenetic tree was constructed, which showed that different populations of inter- and intra-species could be specified and distinguished. The matK gene sequences of the 6 Fallopia species were all found to be of 1 271 bp in length, with some nucleotide variations throughout the entire sequences. The nucleotide difference at position 1 041 could distinguish F. denticulata from others, while specific nucleotide at position 1 154 became identification markers for F. aubertii. Moreover, four specific marker sites for F. multiflora var. ciliinerve at positions 216, 224, 1 060 and 1 179, seven for F. convolvulus at 318, 765, 772, 874, 936, 952 and 1 036, and seven for F. dentate alata at 111, 192, 366, 450, 457, 1 032 and 1 074 were also observed. By detecting the marker nucleotides and analyzing the phylogenetic relationship, the botanical origins of five inspected drugs were determined, suggesting that matK sequences can be used for authenticating Fallopia plants and drugs.
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Foundation item: Supported by the Natural Science Foundation of Guangdong Province(06019716)
Biography: SHENG Shujing, female, Ph.D. candidate, research direction: molecular identification of Chinese herbal medicines.
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Sheng, S., Yan, P., Zheng, C. et al. Identification of Fallopia species based on the chloroplast matK gene sequences. Wuhan Univ. J. Nat. Sci. 15, 521–526 (2010). https://doi.org/10.1007/s11859-010-0695-6
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DOI: https://doi.org/10.1007/s11859-010-0695-6