新疆农业科学 ›› 2018, Vol. 55 ›› Issue (11): 2150-2156.DOI: 10.6048/j.issn.1001-4330.2018.11.023

• 畜牧·兽医·草业 • 上一篇    

口蹄疫病毒基因组3'末端序列扩增及分析

李金娜1, 苗书魁2, 马文戈2, 魏玉荣2, 汪萍2, 夏俊2, 陆桂丽2, 米晓云2, 沙依兰·卡依扎2, 王延2, 魏婕2, 黄炯2   

  1. 1.新疆农业大学动物医学学院,乌鲁木齐 830052;
    2.新疆畜牧科学院兽医研究所(新疆畜牧科学院动物临床医学研究中心,乌鲁木齐 830011
  • 收稿日期:2018-07-21 发布日期:2019-02-22
  • 通信作者: 黄炯(1963-),男,新疆乌鲁木齐人,研究员,研究方向为预防兽医学,E-mail:jh124@163.com
  • 作者简介:李金娜(1993-),女,新疆塔城人,硕士研究生,研究方向为预防兽医学,E-mail:1605563842@qq.com;苗书魁(1983- ),男,甘肃人,高级实验师,研究方向为动物病毒病原学及免疫学,E-mail:miaoshukui123@sina.com
  • 基金资助:
    国家重点研发计划项目“边境地区外来动物疫病阻断及防控体系研究”(2017YFD0501800)“边境地区家养动物外来动物疫病监测溯源技术研究”课题(2017YFD0501801);新疆维吾尔自治区创新环境建设专项科技创新基地建设项目“新疆兽医微生物资源共享平台建设”(PT1809);2014年新疆维吾尔自治区公益性科研院所基本科研业务经费资助项目(KY2014013)

Amplification and Analysis of 3' -end Sequences of the Foot-and-Mouth Disease (Aftosa)Virus Genome

LI Jin-na1, MIAO Shu-kui2, MA Wen-ge2, WEI Yu-rong2, WANG Ping2, XIA Jun2, LU Gui-li2, MI Xiao-yun2, Shayilan Kayizha2, WANG Yan2, WEI Jie2, HUANG Jiong2   

  1. 1.College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Institute of Veterinary Medicine, Xinjiang Academy of Animal Sciences, Urumqi 830011, China
  • Received:2018-07-21 Published:2019-02-22
  • Correspondence author: HUANG Jiong(1963-),male, birth place Urumqi, Xinjiang. Reseacher, research field Preventive veterinary medicine,E-mail:jh124@ 163.com
  • About author:MIAO Shu-kui1983-:,male, birth place: Zhuanglang, Gansu. Senior experimentalist, research field: Etiology and immunology of animal viruses, E-mail:miaoshukui123@sina.com
  • Supported by:
    he National Major R & D Planned Project “Study on the Interdiction and Control System of Exotic Animal Disease in Border Area” (2017YFD0501800)“Study on Monitoring Traceability Technology of Domestic Animal Exotic Disease in Border Area” (2017YFD0501801); Innovation Environment Construction Special Fund for Science and Technology Innovation Base Construction Project of Xinjiang Uygur Autonomous Region “Construction of Sharing Platform for Veterinary Microbial Resources in Xinjiang” (PT1809); The Basic Scientific R & D Program of Public Welfare Research Institutes of Xinjiang Uygur Autonomous Region in 2014 (KY2014013)

摘要: 【目的】扩增口蹄疫病毒(Foot-and-mouth disease virus,FMDV)O/Akesu/58 CE39A株基因组3'末端序列,并对其核苷酸序列进行分析,为FMDV反向遗传学研究奠定基础。【方法】采用普通PCR法和3'RACE法扩增FMDV基因组3'末端序列,利用分子生物学软件对该序列进行分析。【结果】扩增了口蹄疫病毒基因组3'末端序列,3'UTR长98 nt,Poly(A)长度不同(19、23、24、25、27、29、43)。3'UTR序列二级结构含有2个茎环结构,分别位于8 101~8 140和8 146~8 190 nt。O/Akesu/58 CE39A株3'UTR序列与参考毒株O/MAY/3/2014(GenBank登录号:KY322672)和O/IND26(54)/2014(GenBank登录号:KJ825807)的核苷酸序列同源性最高,均为89.8%。【结论】普通PCR法和3'RACE法均可扩增出3'末端序列。同一毒株的亚克隆,其Poly(A) 长度与基因扩增时所用方法有关。不同毒株的Poly(A)长度不同,可能是毒株本身属性,也有可能是由扩增方法不同造成。Poly(A)要么扩增成功后其长度不同,要么扩增失败。失败的原因可能是3'末端结构复杂,难于扩增。

关键词: 口蹄疫病毒; 基因组; 3'末端; Poly(A)

Abstract: 【Objective】 This project aims to amplify the 3'-end sequences of the O/Akesu/58 CE39A strain and conduct analysis of the nucleotide sequence in order to lay the foundation for the study of the reversed genetics of foot-and-mouth disease virus(FMDV).【Method】The 3' -end sequence of foot-and-mouth disease virus genome was amplified by general PCR and 3' RACE, and analyzed by molecular biology software.【Result】The 3'-end sequence of FMDV genome was successfully amplified and the length of 3'UTR was 98 nt, but the lengths of Poly (A) were different (19, 23, 24, 25, 27, 29 and 43). The secondary structure of 3'UTR sequence contained two stem-loop structures, which were located in 8 101-8 140 nt and 8 146-8 190 nt, respectively. The 3'-end sequence of O/Akesu/58 CE39A showed the highest homologous with reported strain O/MAY/3/2014 (GenBank accession no. KY322672) and O/IND26 (54) /2014 (GenBank accession no. KJ825807), and the similarity of these two reported strains with O/Akesu/58 CE39A was up to 89.8%.【Conclusion】The 3'-end sequences can be amplified by general PCR and 3'RACE. The length of Poly (A) of the same virus strain is related to the method used in gene amplification. The lengths of Poly (A) of different viruses are different, which may be attributed to the virus itself, or may be caused by different amplification methods. Poly (A) is either amplified or unsuccessful. The reason for the failure may be that the structure of the 3'-end is complex, so it is difficult to amplify.

Key words: foot-and-mouth disease virus; genome; 3'-end; Poly (A)

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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