title: Detection of genetic homogeneity of Panax notoginseng cultivars by sequencing nuclear 18S rRNA and plastid matK genes.
abstract: The nuclear 18S rRNA and chloroplast MATK genes of 18 samples of Panax notoginseng and its processed material Sanqi (Radix Notoginseng) were analyzed. The two genes, regardless of cultivar origin, were found to be identical to genotype R1 and M1, respectively, of the published sequences (GenBank accession no. D85171 and AB027526). This phenomenon implies that the species is highly conserved, which is probably caused by the use of the same strain in cultivation and the lack of active mutation in these two genes.
authors.affiliation: Institute of Materia Medica, China Academy of Traditional Chinese Medicine, Beijing, PR China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jin-Chao
authors.initials: JC
authors.lastname: Zhang
authors.forename: Ming-Hui
authors.initials: MH
authors.lastname: Huang
authors.forename: Meng-Su
authors.initials: MS
authors.lastname: Yang
authors.forename: Hui
authors.initials: H
authors.lastname: Cao
mesh_terms: D001483:Base Sequence; D017343:Genes, Plant; D005838:Genotype; D008969:Molecular Sequence Data; D009154:Mutation; D005894:Panax / Q000145:classification / Q000235:genetics*; D018087:Plastids / Q000235:genetics*; D015138:RNA, Nuclear / Q000235:genetics; D012337:RNA, Ribosomal, 18S / Q000235:genetics*; D017422:Sequence Analysis, DNA
chemical_list: D015138:RNA, Nuclear; D012337:RNA, Ribosomal, 18S