畜牧兽医学报 ›› 2017, Vol. 48 ›› Issue (10): 1969-1975.doi: 10.11843/j.issn.0366-6964.2017.10.020

• 预防兽医 • 上一篇    下一篇

陕西省犊牛安氏隐孢子虫多位点序列分型研究

任冠静, 王雪婷, 张会军, 宋军科*, 赵光辉*   

  1. 西北农林科技大学动物医学院, 杨凌 712100
  • 收稿日期:2017-04-28 出版日期:2017-10-23 发布日期:2017-10-23
  • 通讯作者: 宋军科,讲师,主要从事人兽共患寄生虫病的防控研究,E-mail:sjk7998@163.com;赵光辉,副教授,主要从事人兽共患寄生虫病的防控研究,E-mail:zgh083@nwsuaf.edu.cn
  • 作者简介:任冠静(1992-),女,河南禹州人,硕士生,主要从事分子病原学方面的研究,E-mail:guanjing0406@163.com
  • 基金资助:

    国家重点研发计划(2017YFD0501300);国家自然科学基金面上项目(31572509);陕西省科学技术研究发展规划资助项目(2016NY-113);中国博士后面上项目(2016M592848);陕西省博士后科研项目资助特别资助。

Multilocus Sequence Typing of Cryptosporidium andersoni from Calves in Shaanxi Province

REN Guan-jing, WANG Xue-ting, ZHANG Hui-jun, SONG Jun-ke*, ZHAO Guang-hui*   

  1. College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
  • Received:2017-04-28 Online:2017-10-23 Published:2017-10-23

摘要:

为了对陕西省犊牛安氏隐孢子虫(Cryptosporidium andersoni)进行多位点序列分型(multilocus sequence typing, MLST),本研究基于4个基因位点对陕西省4个地区的36份犊牛(0~6月龄)C.andersoni阳性粪便样品进行PCR检测和序列分析。结果显示,15份C.andersoni分离株在CM-MS1、CM-MS2、CM-MS3、CM-MS16 4个基因位点均被成功分型,形成A4、A4、A2、A1,A4、A4、A4、A1,A5、A4、A4、A1和A1、A4、A4、A1共4个MLST亚型。其中A4、A4、A4、A1广泛分布于各个养殖场与不同品种犊牛中,为该地区犊牛C.andersoni的优势亚型。该研究结果表明,陕西地区犊牛C.andersoni存在遗传多样性,具有多种MLST亚型。

Abstract:

To study the multilocus sequence types of Cryptosporidium andersoni from calves in Shaanxi Province, 36 fecal samples positive for C. andersoni were collected from 0-6 months calves in four regions of Shaanxi province and examined by the polymerase chain reaction (PCR). Sequence analysis was based on four genetic loci, namely CM-MS1, CM-MS2, CM-MS3 and CM-MS16. The results showed that a total of 15 C. andersoni isolates were successfully genotyped in all four loci and divided into 4 subtypes of MLST, namely A4, A4, A2, A1; A4, A4, A4, A1; A5, A4, A4, A1; A1, A4, A4, A1. Among them, the MLST (A4, A4, A4, A1), as the dominant subtype, was widely distributed in various farms and different breeds of calves. These findings indicated that genetic variation was presented in C. andersoni of calves in Shaanxi province and various MLST subtypes were found in these calves.

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