@article {Yang:2006p8002,
	title = {[Nuclear ribosomal DNA internal transcribed spacer 1 sequences of 4 Leonurus species]},
	journal = {Nan Fang Yi Ke Da Xue Xue Bao},
	volume = {26},
	number = {11},
	year = {2006},
	month = {Nov},
	pages = {1593{\textendash}5},
	abstract = {OBJECTIVE: To analyze the nuclear ribosome DNA (nrDNA) internal transcribed spacer (ITS) sequences of 4 Leonurus species, and the possibility of using them for molecular authentication of the crude drugs from the genus. METHODS: The nrDNA ITS sequence (including ITS1, 5.8S rDNA, ITS2, and partial 18S rDNA and 26S rDNA) of L. japonicus and its 3 adulterant species were amplified and sequenced, and CLUSTRAL X and MEGA software was employed for analysis. RESULTS: The variation of ITS1 and ITS2 between L. japonicus and its adulterant species ranged between 7.2\% and 18.8\% and between 14.2\% and 27\%, respectively. The phylogenic tree derived from the dendrograms based on the ITS sequence data contained some discrepancy from the traditional classification. CONCLUSION: The nrDNA ITS sequences can be used potentially as efficient markers for identification of L. japonicus and its adulterants, and further study is needed for studying the phylogeny of Leonurus.},
	keywords = {DNA: Plant, DNA: Ribosomal Spacer, Leonurus, Molecular Sequence Data, Phylogeny, Sequence Analysis: DNA, Species Specificity},
	author = {Zhi-Ye Yang and Zhi Chao and Ke-Ke Huo and Bing-Yi Wu and Sheng-li Pan}
}
