Molecular Identification of Serpentis Periostracum and Its Adulterants Based on COI Sequence / 世界科学技术-中医药现代化

Objective: This study aimed to distinguish Serpentis Periostracum from its adulterants, which will provide the basis for its safe application. Methods: Here, COI sequences of 68 samples from 13 species were PCR amplified and sequenced. Furthermore, the DNA Barcoding Gap and phylogenetic cluster analysis were carried out. Results:The results exhibited that the COI sequences of all the three origin animals of Serpentis Periostracum have DNA Barcoding Gap. For phylogenetic cluster analysis, all the three origin animals showed monophyletic and every species can be discriminated clearly. Conclusion: COI is an effective DNA barcode for the identification of Serpen-tis Periostracum.