Does the Dzungarian racerunner(Eremias dzungarica Orlova,Poyarkov,Chirikova,Nazarov,Munkhbaatar,MunkhbayarTerbish,2017)occur in China?Species delimitation and identification with DNA barcoding and morphometric analyses

摘要

The Eremias multiocellata-przewalskii species complex is a viviparous group in the genus Eremias,and a well-known representative of taxonomically complicated taxa.Within this complex,a new species-E.dzungarica(Orlova et al.,2017)-has been described recently from western Mongolia and eastern Kazakhstan,with an apparent distribution gap in northwestern China.In this study,we used an integrative taxonomic framework to address whether E.dzungarica indeed occurs in China.Thirty specimens previously classified as E.multiocellata were collected in eastern Kazakhstan and the adjacent Altay region in China.The cytochrome c oxidase I(COI)barcodes were sequenced and compiled with those from Orlova et al.(2017)and analyzed with the standard and diverse barcoding techniques.