中国畜牧兽医

• 生物技术 • 上一篇    下一篇

鹅源黄病毒的分离和初步鉴定

袁生1, 李金平1,2, 王敏儒1, 白挨泉1, 蒲文珺1, 张济培1, 彭巧丽2, 王辉2, 陈志伟2,3, 张浩吉1   

  1. 1. 佛山科学技术学院动物医学系,广东佛山 528231;
    2. 香港大学李嘉诚医学院艾滋病研究所深圳研究室, 深圳第三人民医院,广东深圳 518112;
    3. 香港大学李嘉诚医学院艾滋病研究所,中国香港
  • 收稿日期:2012-01-18 出版日期:2012-09-20 发布日期:2012-09-18
  • 通讯作者: 张浩吉(1963-),男,陕西人,教授,博士。E-mail: zhanghaoji@yahoo.com.cn E-mail:zhanghaoji@yahoo.com.cn
  • 作者简介:袁生(1966-),男,广东人,硕士,实验师,主要从事动物疫病的教学、科研和临床工作。
  • 基金资助:

    广东省自然科学基金项目(10152800001000007);广东省农业攻关计划项目(2005B20201008)。

Isolation and Preliminary Identification of a Novel Flavivirus Strain from Geese

YUAN Sheng1, LI Jin-ping1,2, WANG Min-ru1, BAI Ai-quan1, PU Wen-jun1, ZHANG Ji-pei1, PENG Qiao-li2, WANG Hui2, CHEN Zhi-wei2,3, ZHANG Hao-ji1   

  1. 1. Department of Veterinary Medicine, Foshan University, Foshan 528231, China;
    2. Shenzhen Laboratory,AIDS Institute, The University of Hong Kong LKS Faculty of Medicine, Shenzhen Third People’s Hospital,Shenzhen 518112,China;
    3. AIDS Institute,The University of Hong Kong LKS Faculty of Medicine,Hong Kong,China
  • Received:2012-01-18 Online:2012-09-20 Published:2012-09-18

摘要: 本试验从广东地区临床表现为体温升高、采食量减少、拉稀粪、站立不稳、运动障碍的幼龄病鹅群,无菌采集病料,进行病原的分离传代。研究结果表明,该病毒对番鸭胚的半数致死量(ELD50)为10-2.68/0.2 mL,在pH 7.2的条件下不能凝集鸭、鸡、鹅、鸽的红细胞,人工感染15日龄健康幼鹅能复制出与自然病例相同的临床症状和病变。用BYD病毒E基因片段的特异性引物,对试验获得毒株进行RT-PCR扩增和序列分析,证明获得的序列与GenBank中收录的发现于中国引起鸭产蛋下降综合征的新型黄病毒—BYD病毒(登录号为JF312912)和中国江苏发现的鹅黄病毒JS804株(登录号为JF895923)的同源性最高(有2个碱基的差异),均达到了99%以上,对试验获得的毒株暂定为鹅源BYD病毒广东株1(简称为BYD-GD1)。

关键词: 黄病毒; 鹅; 分离; 鉴定

Abstract: A virus strain isolated from young geese (gosling)with fever, feed uptake decline, diarrhea, standing instability and dyskinesia signs, in Guangdong area. The isolated virus ELD50 to muscovry duck was 10-2.68/0.2 mL, and had no hemagglutination activity on chichen,duck,goose or pigeon sera at pH 7.2. A animal regression experiment was conducted, and a similar disease was reproduced in 15-day healthy geese. Using specific PCR primer pairs,which was used to amplified partial E gene of the BYD virus, a 401 bp nucleotide fragment was obtained by RT-PCR.The obtained sequence was compared to the GenBank database using BLAST and the closest sequences were BYD virus(GenBank accession JF312912), which caused duck egg-drop syndrome in China, and a novel Flavivirus strain JS804(GenBank accession JF895923), which isolated from geese in Jiangsu China, with a similarity of 99%. These results suggested that the isolated virus from geese in Guangdong was the BYD virus of Flavivirus genus and called a brief name for BYD-GD1.

Key words: Flavivirus strain; geese; isolation; identification

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