Zoological Research ›› 2018, Vol. 39 ›› Issue (5): 309-320.doi: 10.24272/j.issn.2095-8137.2018.053

Special Issue: Mammals Genetics & evolution

• Articles • Previous Articles     Next Articles

How many species of Apodemus and Rattus occur in China? A survey based on mitochondrial cyt b and morphological analyses

Shao-Ying Liu1,*, Kai He2, Shun-De Chen2,3, Wei Jin1, Robert W. Murphy4, Ming-Kun Tang1, Rui Liao1, Feng-Jun Li3   

  1. 1 Sichuan Academy of Forestry, Chengdu Sichuan 610081, China
    2 Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming Yunnan 650223, China
    3 College of Life Sciences, Sichuan Normal University, Chengdu Sichuan 610066, China
    4 Centre for Biodiversity and Conservation Biology, Royal Ontario Museum, Toronto M5S 2C6, Canada
  • Online:2018-09-18 Published:2018-07-13
  • Contact: Shao-Ying Liu,E-mail:shaoyliu@163.com E-mail:shaoyliu@163.com
  • Supported by:

Abstract: Apodemus (mice) and Rattus (rats) are the top rodent reservoirs for zoonoses in China, yet little is known about their diversity. We reexamined the alpha diversity of these two genera based on a new collection of specimens from China and their cyt b sequences in GenBank. We also tested whether species could be identified using external and craniodental measurements exclusively. Measurements from 147 specimens of Apodemus and 236 specimens of Rattus were used for morphological comparisons. We analysed 74 cyt b sequences of Apodemus and 100 cyt b sequences of Rattus to facilitate phylogenetic estimations. Results demonstrated that nine species of Apodemus and seven species of Rattus, plus a new subspecies of Rattus nitidus, are distributed in China. Principal component analysis using external and craniodental measurements revealed that measurements alone could not separate the recognized species. The occurrence of Rattus pyctoris in China remains uncertain.

Key words: Alpha diversity, Apodemus, DNA-barcoding, Rattus, Taxonomy, Phylogenies, Apodemus pallipes, New subspecies

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