Rapid molecular identification of Rana dybowskii by species-specific primers
Heyuan Zou1, Huili Lai2, Wenru Wu1
1School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
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View abstract on PubMed
Counterfeit Oviductus Ranae is a market problem. This study developed a rapid molecular identification method using filter paper DNA purification and species-specific PCR, achieving accurate identification in 30 minutes.
Area of Science:
- Pharmacognosy
- Molecular Biology
- Forensic Science
Background:
- Oviductus Ranae, derived from Rana dybowskii, possesses significant medicinal, tonic, and cosmetic value.
- Market availability is limited by high costs and resource scarcity, leading to prevalent counterfeit products.
- Existing identification methods lack the accuracy to distinguish genuine Oviductus Ranae from adulterants.
Purpose of the Study:
- To establish a rapid and accurate molecular method for identifying Oviductus Ranae.
- To differentiate authentic Oviductus Ranae from its common adulterants.
Main Methods:
- Development of a streamlined genomic DNA extraction protocol utilizing filter paper purification (30 seconds).
- Implementation of species-specific rapid polymerase chain reaction (PCR) amplification.
- Utilizing fluorescence detection for rapid product analysis.
Main Results:
- The developed method successfully identified Oviductus Ranae and three common adulterants.
- The entire identification process is completed in approximately 30 minutes.
- The method demonstrates high specificity, simplicity, and speed.
Conclusions:
- A novel, rapid molecular identification technique for Oviductus Ranae has been successfully established.
- This method offers a reliable solution to combat counterfeit products in the market.
- The technique's efficiency and accuracy support its practical application in quality control.