DNA barcoding of rodent in Ningxia Hui Autonomous Region,China / 中国人兽共患病学报

ABSTRACT

ABSTRACTTo improve the ability of correct classification and identification of rodents in different kinds of foci of zoonosis in Ningxia Hui Autonomous Region in China ,rodents samples from different habitats of Ningxia were collected .Sequences of COI gene were amplified and sequenced from 154 samples .Based on these sequences ,the pairwise genetic distance were calcu‐lated ,and a Neighbor Joining tree were constructed .According to the NJ tree ,20 clusters with high bootstrap support were found from 19 morphological species .The striped dwarf hamsters were divided into two clusters ,which suggested that there were two cryptic species with stripe on the back .The pika from Helan Mountain showed close relationship with Ochotona pal‐lasi ,and the genetic distance was as low as 3 .6% .Results show that DNA barcodes could be used to accurately identify speci‐mens of rodents and correct morphological identification errors .It could discover appearance indistinguishable implied species and could better study the classification and evolution of rodents .