欢迎来到天天文库
浏览记录
ID:55398184
大小:659.08 KB
页数:5页
时间:2020-05-15
《鸡传染性支气管炎病毒Real-time RT-PCR检测方法的建立及应用.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、中国摩亏c亟提2013,29(8):45—49ChineseAgriculturalScienceBulletin鸡传染性支气管炎病毒Real—timeRT—PCR检测方法的建立及应用王鹏,高峰,王园,杨莹,路红,周双海,刘风华(北京农学院动物科学技术学院,北京)摘要:为定量检测鸡传染性支气管炎病毒(IBV)载量,建立IBV的Real—timeRT-PCR方法。用RT-PCR方法扩增出IBV的Ⅳ基因片段,并克隆到pEASY-T3载体中,构建成含有Ⅳ基因片段的重组质粒。应用该重组质粒进行SYBRGreenIReal—timePCR,建立了定量检测IBV核酸的标准曲
2、线与直线回归方程,该方法显示:特异性强,检测下限至少达到5.58x10拷贝/,其重复性试验的变异系数小于3.2%;用建立的方法对实验接种IBVM41株的雏鸡组织中的病毒核酸进行了定量检测,检测结果显示:攻毒后肾脏中IBV含量高于支气管和肺脏,支气管和肺脏中病毒含量在攻毒后第3天高于攻毒后第7、1O天,并证实临床表现与病毒载量之间存在密切关系。研究结果表明,建立的Real—timeR11.PcR检测方法特异性强、灵敏度高、可重复性好,可用于IBv的定量检测。关键词:鸡传染性支气管炎病毒;Rea1.timeRT-PCR;定量检测中图分类号:$855.3文献标志码:A
3、论文编号:2012.3874DevelopmentandApplicationofReal-timeRT—PCRAssayforChickenInfectiousBronchitisVirusWangPeng,GaoFeng,WangYuan,YangYing,LuHong,ZhouShuanghai,LiuFenghua(CollegeofAnimalScienceandVeterinaryMedicine,BeijingUniversityofAgriculture,Beijing102206)Abstract:Theobjectiveofthisstudy
4、wastodevelopaReal—timeRT—PCRassayofchickenInfectiousBronchitisVirus(IBV)andthereforetodetecttheloadIBVquantitatively.AfragmentofNgeneinIBVwasamplifiedwithRT—PCRmethod.andwasclonedintothevectorpEASY—T3.Then.therecombinantplasmidcontainingtheNgenefragmentwasconstructed.Thestandardcurve
5、andcorrespondinglinearregressionequationofIBVnucleicacidlevelweredevelopedbyReal—timePCRbasedonSYBRGreen1withtherecombinantplasmid.Thismethodshowedahighspecificityandhadadetectionlimitof5.58x1o2eopies/IxL.anditscoefficientofvariationswaslessthan3.2%inthereproducibleassays.Thevirusnuc
6、leicacidintissuesamplesfromchickensinoculatedexperimentallywithIBVM41strainwasquantitativelydeterminedwiththeestablishedReal—timeRT—PCR.ThedetectionresultsshowedthattheloadofIBVinthekidneywasmorethanthatinbronchusandlungafterinoculation.andthevirusloadinthebronchusandlungon3dayspost—
7、inoculationfDPI)werehigherthanthoseon7DPIand10DPI.Moreover,thecorelationbetweentheclinicalmanifestationsandviralloadwasconfirmed.TheresultsindicatedthatthisReal—timeRT—PCRassaywasofhighspecificity,sensitivityandreproducibility,andcouldbeusedforthequantitativedetectionofIBV.Keywords:I
8、BV:Real—time
此文档下载收益归作者所有