Archives of Virology

, Volume 163, Issue 5, pp 1379–1382 | Cite as

Full genome sequence of the first bluetongue virus serotype 21 (BTV-21) isolated from China: evidence for genetic reassortment between BTV-21 and bluetongue virus serotype 16 (BTV-16)

  • Shaomin Qin
  • Heng Yang
  • Yixuan Zhang
  • Zhanhong Li
  • Jun Lin
  • Lin Gao
  • Defang Liao
  • Yingying Cao
  • Pengfei Ren
  • Huachun LiEmail author
  • Jianmin WuEmail author
Annotated Sequence Record


Bluetongue (BT) is one of the most important insect-borne, non-contagious viral diseases of ruminants and can cause severe disease and death in sheep. Its pathogen, bluetongue virus (BTV) has a double-stranded RNA genome consisting of 10 segments that provides an opportunity for field and vaccine strains of different serotypes to reassort whilst simultaneously infecting the same animal. For the first time, we report the full-length genome sequence of a BTV strain of serotype 21 (5149E) isolated from sentinel cattle in Guangxi Province in China in 2015. Sequence analysis suggested that the isolate 5149E had undergone a reassortment incident and acquired seg-6 from an isolate of BTV-16 which originated from Japan. This study aims to provide more understanding as to the origin and epidemiology of BTV.



We are grateful to Associate Prof. Shaoqiang Ruan at the College of Foreign Language, Guangxi University, for her help in preparing the manuscript.


This study was funded by the Special Fund for Agro-scientific Research in the Public Interest of China (Project No. 201303035), the Open Project Foundation of State Key Laboratory of Veterinary Biotechnology (Project No. SKLVBF201613), and the Special Fund for Basic Scientific Research of Guangxi (Project No. Guike 16-4).

Compliance with ethical standards

Conflict of interest

The authors declare no conflict of interests.

Ethical approval

The animal experiments were approved and performed in accordance with the animal ethics guidelines and approved procedures of Guangxi Veterinary Research Institute, and Yunnan Animal Science and Veterinary Institute.


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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  • Shaomin Qin
    • 1
  • Heng Yang
    • 2
  • Yixuan Zhang
    • 1
  • Zhanhong Li
    • 2
  • Jun Lin
    • 1
  • Lin Gao
    • 2
  • Defang Liao
    • 2
  • Yingying Cao
    • 1
  • Pengfei Ren
    • 1
  • Huachun Li
    • 2
    Email author
  • Jianmin Wu
    • 1
    Email author
  1. 1.Guangxi Key Laboratory of Veterinary BiotechnologyGuangxi Veterinary Research InstituteNanningChina
  2. 2.Yunnan Tropical and Subtropical Animal Virus Disease LaboratoryYunnan Animal Science and Veterinary InstituteKunmingChina

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