中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 非洲马瘟病毒VP7和NS2双重荧光RT-PCR检测技术的建立与应用 中国动物检疫 2013 (4) 34-38
Position: Home > Articles > Development and Application of Duplex Real-time RT-PCR Assayfor the Detection of VP7 and NS2 of African Horse Sickness Virus China Animal Health Inspection 2013 (4) 34-38

非洲马瘟病毒VP7和NS2双重荧光RT-PCR检测技术的建立与应用

作  者：
高志强;张鹤晓;乔彩霞;蒲静;张伟;谷强;刘环;张利峰;马贵平
单  位：
北京出入境检验检疫局检验检疫技术中心
关键词：
非洲马瘟病毒;VP7和NS2;双重通用荧光RT-PCR
摘  要：
利用DNAMAN软件对非洲马瘟病毒不同基因型代表株的序列进行分析,选择其高度保守的VP7和NS2基因设计合成引物和探针。人工分别合成包含有扩增区域的VP7和NS2核苷酸片段进行双向(T7和SP6)体外转录制备双链RNA(dsRNA)。使用制备的dsRNA在对荧光定量RT-PCR的反应条件优化的基础上,建立了适用于非洲马瘟病毒检测的双重通用荧光定量RT-PCR检测技术。应用建立的方法对非洲马瘟病毒核酸,马流感病毒核酸,马流产沙门氏菌核酸,马链球菌兽疫亚种核酸,东、西部马脑脊髓炎病毒核酸进行检测,结果显示该检测技术可以有效检测非洲马瘟病毒核酸,而对其它病原核酸检测结果为阴性,证实本技术的特异性强、可靠性好。对已知拷贝数的dsRNA检测结果表明,所建立的TaqMan荧光定量RT-PCR灵敏度可达1.0×102拷贝/反应,相比于基于凝胶电泳常规RT-PCR方法,其灵敏度高10倍;而且双基因的检测设计思路更能保证病毒核酸的有效检测,防止漏检。在对248份临床样品的检测中,进一步证实了该方法快速、灵敏且重复性好,可满足非洲马瘟病毒快速诊断的需要。
译  名：
Development and Application of Duplex Real-time RT-PCR Assayfor the Detection of VP7 and NS2 of African Horse Sickness Virus
作  者：
Gao Zhiqiang,Zhang Hexiao,Qiao Caixia,Pu Jing,Zhang Wei,Gu Qiang,Liu Huan,Zhang Lifeng,Ma Guiping(Beijing Entry-Exit Inspection and Quarantine Bureau,Beijing 101113)
关键词：
African horse sickness virus;VP7 and NS2;Duplex universal real-time RT-PCR
摘  要：
Nucleic acid sequences of representative strains of different genotypes of African horse sickness viruses(AHSV)were aligned with the DNAMAN software. The two highly conservative NS2 and VP7 regions were then subjected to design primers and probes. The artificially synthesized nucleic acid fragments including amplification regions were used to prepare double strand RNA(dsRNA)by in vitro transcription in two directions(T7 and SP6). A duplex real-time TaqMan RT-PCR assay was developed to detect and quantify AHSV by optimization of reaction conditions using prepared dsRNA. The developed assay was used to detect a set of extracted pathogen RNA/DNA including those of AHSV,Eastern and Western equine encephalomyelitis virus(EEEV and WEEV),equine arteritis virus(EAV),equine influenza virus subtype H3N8(EIV H3N8),Salmonella abortus equi,Streptococcus equi subsp. zooepidimicus resulting in positive only for AHSV RNA,but negative for other virus nucleic acids,suggesting that the developed assay was specific and reliable. The detection limit of the real-time RT-PCR was 1.0×102copies per reaction,10 times more sensitive than that of the conventional RT –PCR based on gel electrophoresis. Also the double gene design could ensure the reliability,and efficiently reduce false negative results. By testing 248 clinical samples,it is confirmed that this assay was rapid,sensitive and repeatable,meeting the requirements for rapid diagnosis of AHSV.

相似文章

导出引用
计量
文章访问数: 8
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46