Identification of Viticis Fructus and Its Adulterants by ITS2 Sequence
10.11842/wst.2014.11.014
- VernacularTitle:蔓荆子药材及其混伪品DNA条形码鉴定研究＊
- Author:
Xiaocun ZHANG
;
Di XU
;
Wei SUN
;
Ming SONG
;
Xia LIU
- Publication Type:Journal Article
- Keywords:
Viticis Fructus;
adulterants;
DNA barcoding;
ITS2
- From:
World Science and Technology-Modernization of Traditional Chinese Medicine
2014;(11):2366-2370
- CountryChina
- Language:Chinese
-
Abstract:
ITS2 sequence was used as a barcode to identify Viticis Fructus and its adulterants. The study collected 46 samples include Viticis Fructus and its adulterants. The sequences were obtained by extracting DNA, amplification, sequencing bi-direstionlly, and then assembling with CodonCode Aligner. To identify Viticis Fructus and its adulterants, the study used the methods of computing the genetic distances by Kimura 2-Parameter (K2P) model and constructing the Neighbor-joining (NJ) phylogenetic trees using MEGA5.0. The results showed that the maximum inter-specific K2P distance of Viticis Fructus was less than the minimum inter-specific K2P distance of Viticis Fructus and its adulterants and the NJ tree indicated that the Viticis Fructus and its adulterants could be distinguished clearly. Therefore, using ITS2 barcode can distinguished Viticis Fructus and its adulterants accurately.
