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时间:2019-05-19
《应用实时荧光RT-PCR检测柑橘黄化脉明病毒》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、园艺学报,2016,43(1):168–174.ActaHorticulturaeSinica168doi:10.16420/j.issn.0513-353x.2015-0774;http://www.ahs.ac.cn应用实时荧光RT-PCR检测柑橘黄化脉明病毒111121,*陈洪明,周彦,王雪峰,周常勇,杨秀燕,李中安12(西南大学/中国农业科学院柑桔研究所,国家柑桔工程技术研究中心,重庆400712;安岳县柠檬科学技术研究所,四川安岳642300)摘要:为更快速准确检测柑橘黄化脉明病毒(Citrusyellowveinclea
2、ringvirus,CYVCV),根据病毒外壳蛋白基因的保守序列设计特异性引物,通过体系优化得到最佳反应条件,建立基于SYBRGreenⅠ的CYVCV实时荧光RT-PCR检测方法。该方法可特异性检测CYVCV,而测试的柑橘衰退病毒、碎叶病毒等5种柑橘病毒均不能检测出。灵敏度较普通RT-PCR提高了100倍,标准曲线循环阈值与模板浓度呈良好的线性关系,扩增效率和相关性系数分别为102%和0.999。对田间样品的检测结果表明,建立的实时荧光RT-PCR适用于检测不同柑橘品种中CYVCV的含量。关键词:柑橘;柑橘黄化脉明病毒;实时荧光RT
3、-PCR;检测;应用中图分类号:S666文献标志码:A文章编号:0513-353X(2016)01-0168-07DetectionofCitrusyellowveinclearingvirusBasedonaReal-timeRT-PCRApproach11112CHENHong-ming,ZHOUYan,WANGXue-feng,ZHOUChang-yong,YANGXiu-yan,andLI1,*Zhong-an1(CitrusResearchInstitute,SouthwestUniversity,ChineseAcade
4、myofAgriculturalSciences,NationalCitrusEngineering2ResearchCenter,Chongqing400712,China;LemonScienceandTechnologyInstitute,Anyue,Sichuan642300,China)Abstract:Todeveloparapidandreliabledetectionmethod,areal-timeRT-PCRsystembasedonSYBRGreenⅠwasestablishedbyusingapairofsp
5、ecificprimersdesignedfromconservedcoatproteingeneofCitrusyellowveinclearingvirus(CYVCV).Thesensitivity,specificityandapplicabilityofthesystemwereevaluatedaccordingly.TheresultsshowedthatampliconswereproducedfromCYVCVisolates,whereasnoampliconsfromnon-CYVCVcitrusvirussa
6、mplesincludingCitrustristezavirus(CTV)andCitrustatterleafvirus(CTLV)wereobtained.Thesensitivityofthereal-timeRT-PCRwas2100-foldhigherthanthatofconventionalRT-PCR.Anexcellentlinearcorrelation(R=0.999)obtainedfromtwostandardcurvesofcRNAandtheamplificationefficiencywas102
7、%.Thedatafromfieldcitrussamplesdetectionshowedthatthereal-timeRT-PCRsystemcouldbeusedtodeterminetheconcentrationofCYVCVinthedifferentcitrusspecies.Keywords:citrus;Citrusyellowveinclearingvirus;real-timeRT-PCR;detection;application收稿日期:2015–10–12;修回日期:2016–01–21基金项目:中央高
8、校基本科研业务费专项(XDJK2015C091,2015A009,2014A001);重庆市两江学者项目;国家科技支撑项目(2012BAD19B06)*通信作者Authorforcorrespondence(E-mail:zhonga
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