华南农业大学学报
華南農業大學學報
화남농업대학학보
JOURNAL OF SOUTH CHINA AGRICULTURAL UNIVERSITY
2014年
2期
53-56
,共4页
孙洁%王婉%周翎%阮小蕾%饶雪琴%李华平
孫潔%王婉%週翎%阮小蕾%饒雪琴%李華平
손길%왕완%주령%원소뢰%요설금%리화평
黄瓜花叶病毒%TaqMan探针%荧光定量PCR检测方法
黃瓜花葉病毒%TaqMan探針%熒光定量PCR檢測方法
황과화협병독%TaqMan탐침%형광정량PCR검측방법
Cucumber mosaic virus( CMV)%TaqMan probes%real time PCR detection method
[目的]建立检测香蕉中黄瓜花叶病毒Cucumber mosaic virus( CMV)的实时荧光定量方法.[方法]根据CMV外壳蛋白( CP)保守序列设计了TaqMan实时荧光定量PCR特异性探针及引物,优化反应体系检测TaqMan探针实时荧光定量方法的灵敏度、特异性和重复性.[结果和结论]该方法检测灵敏度为4.2×102μL-1,比普通PCR高100倍,且与香蕉束顶病毒Banana bunchy top virus(BBTV)、香蕉线条病毒Banana streak virus(BSV)无交叉反应,特异性和重复性都较好.用实时荧光定量PCR检测14份田间香蕉样品有5份样品为阳性,进一步证明建立的实时荧光定量方法可用于香蕉CMV的检测.
[目的]建立檢測香蕉中黃瓜花葉病毒Cucumber mosaic virus( CMV)的實時熒光定量方法.[方法]根據CMV外殼蛋白( CP)保守序列設計瞭TaqMan實時熒光定量PCR特異性探針及引物,優化反應體繫檢測TaqMan探針實時熒光定量方法的靈敏度、特異性和重複性.[結果和結論]該方法檢測靈敏度為4.2×102μL-1,比普通PCR高100倍,且與香蕉束頂病毒Banana bunchy top virus(BBTV)、香蕉線條病毒Banana streak virus(BSV)無交扠反應,特異性和重複性都較好.用實時熒光定量PCR檢測14份田間香蕉樣品有5份樣品為暘性,進一步證明建立的實時熒光定量方法可用于香蕉CMV的檢測.
[목적]건립검측향초중황과화협병독Cucumber mosaic virus( CMV)적실시형광정량방법.[방법]근거CMV외각단백( CP)보수서렬설계료TaqMan실시형광정량PCR특이성탐침급인물,우화반응체계검측TaqMan탐침실시형광정량방법적령민도、특이성화중복성.[결과화결론]해방법검측령민도위4.2×102μL-1,비보통PCR고100배,차여향초속정병독Banana bunchy top virus(BBTV)、향초선조병독Banana streak virus(BSV)무교차반응,특이성화중복성도교호.용실시형광정량PCR검측14빈전간향초양품유5빈양품위양성,진일보증명건립적실시형광정량방법가용우향초CMV적검측.
[Objective] To develop a real-time quantitative PCR method with TaqMan probes to quantify Cucumber mosaic virus (CMV) in banana.[Method] The primers and probes were designed based on the conserved coat protein ( CP) sequences of CMV and were applied to real-time PCR assays .The reaction system was optimized ,and its sensitivity , specificity and repeatability were evaluated .[Result and conclu-sion]The detection sensitivity of the real-time PCR assay was 4.2 ×102μL-1 , which was 100 times more sensitive than PCR.The specifity of the assay was analyzed with Banana bunchy top virus (BBTV) and Banana streak virus ( BSV) , and no cross reaction were observed .The assay also had good repetitions . The real-time PCR assay was evaluated with field samples .5 of the 14 tissue samples collected from field suspected CMV infected bananas were positive , which further confirmed that the real-time PCR method should be suitable for detection and quantitation of CMV in banana .