Abstract
The Asiatic water snake (Xenochrophis piscator) is a small-sized snake and can be found in or near freshwater lakes or rivers. This species is listed in Appendis III of the Convention on International Trade in Endangered Species of Wild Fauna and Flora. We isolated and characterizated 9 polymorphic microsatellite loci in this species to evaluate their population polymorphism using 176 individuals collected from Quanzhou in southern China. These markers revealed a high degree of genetic diversity (20–50 alleles per locus) and heterozygosity (H O ranged from 0.137 to 0.944 and H E ranged from 0.884 to 0.953). No locus exhibited significant deviations from Hardy–Weinberg equilibrium. There was no evidence of linkage disequilibrium among pairs of loci. These microsatellite markers will be useful for future study of gene flow, population structure, and evolutionary history of X. piscator.
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