Abstract
Ethnopharmacological relevanceMantidis Oötheca (mantis egg case; sangpiaoxiao) is a medicine from an insect source, which has been widely used in Asian countries. However, misidentification due to a lack of information given variations in the medicinal portion of the ootheca and morphological similarities of the ootheca as an egg chamber. Aim of the studyThus, this study aims to provide the first comprehensive data for discriminating authentic of Mantidis Oötheca. Here, we provide detailed ootheca morphology and their molecular information to accurately identify Mantidis Oötheca. Materials and methodsOothecae of Tenodera angustipennis (Saussure, 1869), Tenodera sinensis (Saussure, 1871), Hierodula patellifera Serville, 1839, and Hierodula sp. were used in the comparative morphological, principal component analysis, and DNA barcoding. ResultsThe morphological analyses revealed that the emergence area, outline, angle of distal end, width of air-filled layer, and weight are useful diagnostic characters. Using these quantitative and qualitative characteristics, we developed the effective identification key. Furthermore, our CO1 sequences from all individuals were monophyletic with high bootstrap values at genus and species levels. Moreover, morphological identification using our developed key among all studied individuals agreed with molecular identification results using CO1 barcoding data. ConclusionsThese multilateral approaches, including morphological, statistical, and DNA barcoding methods are highly reliable identification tools. Moreover, our diagnostic key characteristics and molecular barcoding should aid in the accurate identification, authentication, and quality control of Mantidis Oötheca medicinal materials.
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