DIAO Xiaowei,LIU Yanan,JIN Yan,et al.PCR-RFLP for Distinguishing Periplocae Cortex from Acanthopanacis Cortexand Lycii Cortex[J].Chinese Journal of Experimental Traditional Medical Formulae,2024,30(04):42-47.
DIAO Xiaowei,LIU Yanan,JIN Yan,et al.PCR-RFLP for Distinguishing Periplocae Cortex from Acanthopanacis Cortexand Lycii Cortex[J].Chinese Journal of Experimental Traditional Medical Formulae,2024,30(04):42-47. DOI: 10.13422/j.cnki.syfjx.20231716.
PCR-RFLP for Distinguishing Periplocae Cortex from Acanthopanacis Cortexand Lycii Cortex增强出版
To establish a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method for rapid distinguishing Periplocae Cortex
from Acanthopanacis Cortex
and Lycii Cortex, so as to avoid the influence of genetic confusion on drug safety.
Method
2
The DSS-tagged sequences of Periplocae Cortex were obtained from the Chloroplast Genome Information Resource (CGIR) and analyzed to find the enzymatic cleavage sites that were different from those of Acanthopanacis Cortex and Lycii Cortex. The specific enzymatic cleavage site,
Cla
I, of Periplocae Cortex was selected, on the basis of which the primers for PCR-RFLP were designed. Furthermore, the factors such as annealing temperature, number of cycles,
Taq
enzyme, PCR instruments, and enzymatic treatment time that may influence PCR-RFLP were studied. The established PCR-RFLP method was applied to the identification of Periplocae Cortex, Acanthopanacis Cortex, and Lycii Cortex samples produced in different regions.
Result
2
The PCR-RFLP at the annealing temperature of 59 ℃ and with 40 cycles showed clear bands of the samples. When the enzyme digestion time was 30 min. The reaction produced the target bands at about 140 bp and 290 bp for both Periplocae Cortex and its original plant and only a band at about 430 bp for Acanthopanacis Cortex, Lycii Cortex, and their original plants. The method can accurately distinguish Periplocae Cortex from its confounders Acanthopanacis Cortex and Lycii Cortex.
Conclusion
2
The PCR-RFLP method for distinguishing Periplocae Cortex from Acanthopanacis Cortex and Lycii Cortex was established. It has high stability, sensitivity, and applicability, providing a reference for the quality control of Periplocae Cortex, Acanthopanacis Cortex, and Lycii Cortex.