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A strategy integrated DNA barcoding with metabolomics for screening distinguishable combinatorial chemical quality marker between Pheretima aspergillum and Pheretima vulgaris Chen

Ye Shang,Suyi Liu,Chunxiao Liang,Tenukeguli Tuliebieke,Shujing Chen,Kunze Du,Xiaoxuan Tian,Jin Li,Jun He,Hua Jin,Yanxu Chang

Pheretima is an animal-derived traditional Chinese medicines (TCMs). The chemical quality markers of Pheretima used to distinguish different species are still ambiguous. Under this premise, a strategy integrated DNA barcoding with metabolomics is promoted for identifying Pheretima and screening distinguishable combinatorial chemical quality marker (DCQ-marker) between Pheretima aspergillum ( P. aspergillum ) and Pheretima vulgaris Chen ( P. vulgaris ). As a result, adenosine, adenine, L-phenylalanine and uridine are successfully selected as DCQ-markers between P. aspergillum and P. vulgaris . This study provides convenient strategy for quickly screening DCQ-marker between P. aspergillum and P. vulgaris . It will be meaningful for further promoting quality control on Pheretima and providing a reference for the quality evaluation of other animal-derived TCMs.