title: [Restriction endonuclease digest - melting curve analysis: a new SNP genotyping and its application in traditional Chinese medicine authentication].
abstract: Single nucleotide polymorphisms (SNP) is an important molecular marker in traditional Chinese medicine research, and it is widely used in TCM authentication. The present study created a new genotyping method by combining restriction endonuclease digesting with melting curve analysis, which is a stable, rapid and easy doing SNP genotyping method. The new method analyzed SNP genotyping of two chloroplast SNP which was located in or out of the endonuclease recognition site, the results showed that when attaching a 14 bp GC-clamp (cggcgggagggcgg) to 5' end of the primer and selecting suited endonuclease to digest the amplification products, the melting curve of Lonicera japonica and Atractylodes macrocephala were all of double peaks and the adulterants Shan-yin-hua and A. lancea were of single peaks. The results indicated that the method had good stability and reproducibility for identifying authentic medicines from its adulterants. It is a potential SNP genotyping method and named restriction endonuclease digest - melting curve analysis.
authors: Chao
authors: C
authors: Jiang
authors: Lu-Qi
authors: LQ
authors: Huang
authors: Yuan
authors: Y
authors: Yuan
authors: Min
authors: M
authors: Chen
authors: Jing-Yi
authors: JY
authors: Hou
authors: Zhi-Gang
authors: ZG
authors: Wu
authors: Shu-Fang
authors: SF
authors: Lin
mesh_terms: D031174:Atractylodes / Q000145:classification / Q000235:genetics*; D004262:DNA Restriction Enzymes / Q000378:metabolism*; D018744:DNA, Plant / Q000235:genetics; D004340:Drug Contamination; D005838:Genotype; D031239:Lonicera / Q000145:classification / Q000235:genetics*; D010946:Plants, Medicinal / Q000145:classification / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide
chemical_list: D018744:DNA, Plant; D004262:DNA Restriction Enzymes