畜牧兽医学报 ›› 2014, Vol. 45 ›› Issue (3): 458-462.doi: 10.11843/j.issn.0366-6964.2014.03.016

• 预防兽医 • 上一篇    下一篇

乌骨鸡J亚群白血病的综合诊断及病毒分子生物学特性研究

秦四海1,刘立涛2,岳瑞超2,李宁2,屈亚锦2,王广文2,胡东方2,刘思当2*   

  1. (1.临沂大学生命科学学院,临沂 276000;2.山东农业大学动物科技学院,泰安 271000)
  • 收稿日期:2013-09-11 出版日期:2014-03-23 发布日期:2014-03-23
  • 通讯作者: 刘思当,E-mail:liusid@sdau.edu.cn
  • 作者简介:秦四海(1961-),男,山东日照人,教授,主要从事猪禽传染病的防治,E-mail:qinsihai888@126.com;刘立涛(1990-),男,山东潍坊人,硕士生,主要从事临床病理研究,E-mail:liulitao89@126.com。二人对此研究做出相同的贡献,同为第一作者
  • 基金资助:

    国家自然科学基金(31172296)

Study on Comprehensive Diagnosis and Molecular Characterization of Subgroup J Avian Leukosis Virus from Silkies

QIN Si-hai1,LIU Li-tao2,YUE Rui-chao2,LI Ning2,QU Ya-jin2,WANG Guang-wen2,HU Dong-fang2,LIU Si-dang2*   

  1. (1.College of life science, Linyi University, Linyi 276000, China;2.College of Veterinary Medicine, Shandong Agricultural University,Tai’an 271000, China)
  • Received:2013-09-11 Online:2014-03-23 Published:2014-03-23

摘要:

乌骨鸡是中国特有的优良品种,近年来聊城地区死淘的产蛋种鸡常见肝、脾肿大的肿瘤性疾病。2012年12月收到聊城某乌骨种鸡场送检的6只病死鸡。通过剖检观察、病理组织学检查、PCR检测及病毒分离鉴定,最终确定为J亚群白血病病毒感染所致的髓样细胞瘤和血管瘤。设计4对引物,对病毒全基因序列进行扩增,得到全长为7 647 bp,其中gag长2 016 bp,pol基因长2 622 bp,env长1 689 bp。跨rTM和DR区有205 bp的缺失,相当于原型株HPRS-103的7 049—7 253 bp位置;在先导区序列leader区域中有1个19 bp的插入序列。分离株与英国原型株HPRS-103差异较大,但与近几年国内商品蛋鸡的分离株相似性很高,可能来自商品蛋鸡。

Abstract:

The Silkie is a typical Chinese breed of chicken.In recent years,numbers of Silkies eliminated from farms in Liaocheng,were found to be infected with tumor diseases,showing hepatomegaly and splenomegaly.On Dec.2012,6 dead Silkies from a parent farm were found hepatomegaly and splenomegaly with tumor-like nodules by necropsy.By histological detection,PCR testing,virus isolation and identification,ultimately the Silkies were diagnosed myelocytoma and hemangioma,infected by avian leukemia virus subgroup J (ALV-J).To obtain virus genome sequences,four pairs of primers were designed.And finally 7 647 bp sequence,include gag gene (2 016 bp),pol gene (2 622 bp) and env gene (1 689 bp) were obtained.There was a 205 bp deletion cross rTM (redundant TM) and DR (direct repeat) area,equivalent to 7 049-7 253 position of the prototype ALV-J strain HPRS-103.In the leader sequence of 5′UTR (untranslated region),there was a 19 bp insertion sequence.The isolate was quite different with the British prototype strain HPRS-103,but was highly similar with stains isolated from commercial layers in recent years.Therefore,this isolate may come from commercial layer,which will bring great challenge to the control.

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