title: [Mechanism of genuineness of liquorice Glycyrrhiza uralensis based on CNVs of HMGR, SQS1 and beta-AS gene].
abstract: This study is to reveal the correlation between CNVs of HMGR, SQS1, beta-AS gene and genuineness of liquorice. Real-time PCR was used to detect the copy number of HMGR, SQS1, beta-AS gene of liquorice. According to the results, the range of the copy number variation of HMGR gene was between 1 and 3, the copy number of SQS1 gene was 1 or 2, and the copy number of beta-AS gene was only 1. On the basis of the copy number of HMGR, SQS1 and beta-AS gene, there were five groups, type A (2 + 1 + 1), type B (1 + 1 + 1), type C (3 + 2 + 1), type D (2 + 2 + 1) and type E (3 + 1 + 1). There were two types, type A and type B, in Hangjinqi of Inner Mongolia, and the ratio of A to B was 1:1.3. There were also two types, type A and type B, in Chifeng of Inner Mongolia, and the ratio of A to B was 3:1. There were four types, type A, type B, type C and type D, in Yanchi of Ningxia province, and the ratio of A to B was 1:5.1. There were three types, type A, type B and type E, in Minqin of Gansu province, and the ratio of A to B was 2:1. So CNVs mainly existed in the liquorice from Ningxia and Gansu provinces. While the genetic background of liquorice from Hangjinqi of Inner Mongolia was stabilized. The results of the experiment proved that the correlation between CNVs and origins was one of the reasons of genuineness of liquorice.
authors.affiliation: School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 100102, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Liu
authors.forename: Dong-Ji
authors.initials: DJ
authors.lastname: Liu
authors.forename: Chun-Sheng
authors.initials: CS
authors.lastname: Liu
authors.forename: Cai-Li
authors.initials: CL
authors.lastname: Liao
authors.forename: Xiao-Li
authors.initials: XL
authors.lastname: Cheng
mesh_terms: D002681:China; D056915:DNA Copy Number Variations; D018744:DNA, Plant / Q000235:genetics; D013186:Farnesyl-Diphosphate Farnesyltransferase / Q000235:genetics*; D029882:Glycyrrhiza uralensis / Q000201:enzymology / Q000235:genetics*; D006903:Hydroxymethylglutaryl CoA Reductases / Q000235:genetics*; D019751:Intramolecular Transferases / Q000235:genetics*; D060888:Real-Time Polymerase Chain Reaction
chemical_list: D018744:DNA, Plant; D006903:Hydroxymethylglutaryl CoA Reductases; D013186:Farnesyl-Diphosphate Farnesyltransferase; D019751:Intramolecular Transferases; C039924:2,3-oxidosqualene-beta-amyrin-cyclase