Abstract
The mitochondrial DNA cytochrome c oxidase subunit I gene (COI) has been used as an efficient barcoding tool for species identification of animals. In this study, the barcoding sequences were used to assess the genetic diversity and relationship of Mauremy mutica and M. annamensis. Four currently recognized groups of M. mutica were classified into two groups in this study, with 6% intergroup distances, the S group and the N group, consistent to the calling of “southern turtle” and “northern turtle” in folk of China. The north population and Taiwan population formed the N group, and further, the Taiwan population was differentiated as a monophyly originated from the north population, consistent to the calling of “big green head” for the Taiwan population and “small green head” for the north population. The Vietnam, Hainan population, and M. annamensis formed the S group, and the barcoding sequences could not distinguish them from each other. Based on the molecular data and phenotypes of existing hybrids, hybrid origin of M. annamensis may be another possibility.
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