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DOI: 10.1055/s-2008-1074531
© Georg Thieme Verlag KG Stuttgart · New York
Chemotaxonomic Study of Medicinal Taxus Species with Fingerprint and Multivariate Analysis
Publication History
Received: November 23, 2007
Revised: March 29, 2008
Accepted: April 6, 2008
Publication Date:
16 May 2008 (online)
Abstract
Species delimitation in Taxus has been controversial and it is very difficult to distinguish yew materials by their morphological characters. In this paper, a valid HPLC fingerprinting method coupled with multivariate analysis was used to define a framework for Taxus species identification and classification. Fingerprint-based similarity was employed for a chemotaxonomic study by hierarchical clustering analysis (HCA) and principal component analysis (PCA). Based on the PCA loadings, twelve chemical constituents were selected as chemotaxonomic markers which can be used to establish a more practical classification. Finally, eight studied species could be divided into six well-supported groups and most samples can be assigned to the correct species. Additionally, twelve markers were tentatively identified by LC/MS.
Abbreviations
10-DAB: 10-deacetylbaccatin III
10-DAP: 10-deacetylpaclitaxel
10-DAXP: 10-deacetyl-7-xylosylpaclitaxel
9-DHB: 9-dihydro-13-acetylbaccatin III
HCA: hierarchical clustering analysis
ITS: internal transcribed spacer
PCA: principal component analysis
Key words
Taxus - Taxaceae - Chemotaxonomy - Fingerprinting - Multivariate Analysis - Taxanes
- Supporting Information for this article is available online at
- Supporting Information .
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Prof. Ling Yang
Laboratory of Pharmaceutical Resource Discovery
Dalian Institute of Chemical Physics
Chinese Academy of Sciences
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People’s Republic of China
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