Identification of Gastrodia elata and its hybrid by polymerase chain reaction.
10.19540/j.cnki.cjcmm.20200527.102
- Author:
Hui LI
1
;
Run QIAN
2
;
Na TIAN
3
;
Yang-Hua LI
3
;
Chao JIANG
4
;
Yuan YUAN
4
;
Lu-Qi HUANG
5
Author Information
1. Aademician Workstation, Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China.
2. School of Pharmacy, Anhui University of Chinese Medicine Hefei 230012, China.
3. School of Traditional Chinese Medicine, Guangdong Pharmaceutical University Guangzhou 510006, China.
4. State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica,China Academy of Chinese Medical Sciences Beijing 100700, China.
5. Aademician Workstation, Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica,China Academy of Chinese Medical Sciences Beijing 100700, China.
- Publication Type:Journal Article
- Keywords:
Gastrodia elata;
hybrid;
molecular identification;
polymerase chain reaction
- MeSH:
Gastrodia;
Polymerase Chain Reaction
- From:
China Journal of Chinese Materia Medica
2020;45(15):3666-3671
- CountryChina
- Language:Chinese
-
Abstract:
Gastrodia elata is a kind of traditional Chinese medicinal materials and has good medicinal value. G. elata is divided into five varieties, which includes G. elata f. elata(proto variant), G. elata f. glauca, G. elata f. viridis, G. elata f. flavid and G. elata f. alba. Among them, G. elata f. elata and G. elata f. glauca have excellent characteristics and higher contents of gastrodin and polysaccharides. The hybrid of G. elata f. elata and G. elata f. glauca is present in markets, but the characteristics between hybrid and parent are not obvious and distinguished quickly and accurately. The aim of this study is to establish a PCR specific PCR identification method, which can identify G. elata f. elata, G. elata f. glauca and their hybrid. Based on the re-sequencing results of G. elata, we screened for the single nucleotide polymorphism(SNP) variation sites, and designed two pairs of specific primers(W291-F/W291-R and H255-F/H255-R). We further collected G. elata f. elata, G. elata f. glauca and their hybrid samples from different regions, established and optimized PCR method, and investigated and verified their tolerance and applicability. The results showed that when the annealing temperature was 48 ℃ and the number of cycles was 33, 255 bp specific band were obtained from G. elata f. glauca and hybrid by using specific primers W291-F/W291-R. When the annealing temperature was 51 ℃ and the number of cycles was 33, 291 bp specific band were obtained from G. elata f. elata and hybrid by using specific primers H255-F/H255-R. Our method could be used as a promising method to identify G. elata f. elata, G. elata f. glauca and their hybrid.
