ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2015, Vol. 46 ›› Issue (8): 1471-1476.doi: 10.11843/j.issn.0366-6964.2015.08.025

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Molecular Identification and Phylogenetic Analysis of Mycoplasma haemomuris Isolates from Wild Rattus edwardsi based on 16S Ribosomal RNA Gene

BAI Ai-quan1,LI Gao-qiang1,2,GUO Jian-chao1,2,LI Xin1,PU Wen-jun1,LI Guo-qing2,CHEN Zhi-wei3,ZHANG Hao-ji1*   

  1. (1.School of Life Sciences,Foshan University,Foshan 528231,China;2.College of Veterinary Medicine,South China Agricultural University,Guangzhou 510642,China;3.AIDS Institute,Li Ka Shing Faculty of Medicine,The University of Hong Kong,Hong Kong SAR 999077,China)
  • Received:2015-04-08 Online:2015-08-23 Published:2015-08-23

Abstract:

This experiment was conducted to study the species characteristic and phylogenetic relationship of hemoplasmas from the wild rats on molecular level.Thirty-two blood samples collected from wild Rattus edwardsi in Hunan and Guangxi province of China were investigated by PCR aplication based on the 16S rRNA gene sequence.The total infection rate of hemoplasmas was 65.63% (21/32).Genetic variations showed that the inter-specific differences between M.haemomuris isolates and other Mycoplasma species (3.0%-4.5%) were bigger than that (0.8%) between two synonymic species (Haemobartonella muris and M.haemomuris).Phylogenetic analyses indicated that M.haemomuris derived from wild Rattus edwardsi grouped into a solitary clade closely related to H.muris and M.haemomuris. The results suggested that M.haemomuris isolated in the present study should represent a new genotype,and temporarily named M. haemomuris Rattus edwardsi strain.These data may have important implications for researching epidemiology and population biology as well as for studying the taxonomy and status of the genus Mycoplasma.

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