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Archive > Volume 2 Issue 1 > 2010,2(1):16-29. DOI:10.3969/j.issn.1674-6384.年份.期.第幾篇文章 Prev Next

Original articles

Relationship between DNA Barcoding and Chemical Classification of Salvia Medicinal Herbs

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    Abstract:
    Objective To make the identification of medicinal herbs in Salvia L. quickly and accurately. Methods In this work, DNA barcoding and chemical fingerprint were compared for the identification of herbs in Salvia L. First, the nucleotide sequences of the internal transcribed spacer region two amplified from 48 medicinal plants in Salvia L., and three other groups of medicinal plants in Lamiaceae were sequenced. A molecular phylogeny was constructed using the minimum evolution and maximum parsimony methods according to their sequence diversity. Second, the water-solution bioactive components and lipid soluble components were tested by HPLC. Then a chemical phylogeny was built using HPLC fingerprint data. Comparing the molecular and chemical phylogenetic trees revealed many similarities. Results DNA barcoding was sequencing based and could therefore provide more accurate results within a shorter time especially in large-scale studies. Conclusion The results show that ITS2 region is a novel DNA barcode for the authentication of the species in Salvia L. This is the first work to show the relationship between DNA barcoding and chemical components.

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