植物病理学报
植物病理學報
식물병이학보
ACTA PHYTOPATHOLOGICA SINICA
2010年
1期
27-32
,共6页
王威麟%张昊%于祥泉%吴云锋%张文波%张春平
王威麟%張昊%于祥泉%吳雲鋒%張文波%張春平
왕위린%장호%우상천%오운봉%장문파%장춘평
西瓜%多重RT-PCR%检测%病毒
西瓜%多重RT-PCR%檢測%病毒
서과%다중RT-PCR%검측%병독
watermelon%multiplex RT-PCR%detection%virus
根据5种病毒小西葫芦黄花叶病毒(Zucchini yellow mosaic virus,ZYMV)、西瓜花叶病毒(Watermelon mosaic virus,WMV)、烟草花叶病毒(Tobacco mosaic virus,TMV)、南瓜花叶病毒(Squash mosaic virus,SqMV)和黄瓜花叶病毒(Cucumber mosaic virus,CMV)的核苷酸保守区序列,设计特异性引物对,从影响多重RT-PCR(mRT-PCR)扩增的引物浓度、Mg2+浓度、Taq DNA聚合酶浓度、dNTPs浓度、退火温度等方面进行反应体系的优化,建立了一种能够同时检测ZYMV、WMV、TMV、SqMV和CMV的多重RT-PCR技术体系,并进行了实际应用.在一个体系中对上述5种病毒复合侵染的西瓜材料进行多重RT-PCR扩增,得到与试验设计相符的5条特异性条带,依次是542、485、410、354和293 bp.该体系实现了对侵染西瓜的5种病毒的同时检测,极大地提高了检测效率,降低了检测成本,体现了多重RT-PCR的优越性.
根據5種病毒小西葫蘆黃花葉病毒(Zucchini yellow mosaic virus,ZYMV)、西瓜花葉病毒(Watermelon mosaic virus,WMV)、煙草花葉病毒(Tobacco mosaic virus,TMV)、南瓜花葉病毒(Squash mosaic virus,SqMV)和黃瓜花葉病毒(Cucumber mosaic virus,CMV)的覈苷痠保守區序列,設計特異性引物對,從影響多重RT-PCR(mRT-PCR)擴增的引物濃度、Mg2+濃度、Taq DNA聚閤酶濃度、dNTPs濃度、退火溫度等方麵進行反應體繫的優化,建立瞭一種能夠同時檢測ZYMV、WMV、TMV、SqMV和CMV的多重RT-PCR技術體繫,併進行瞭實際應用.在一箇體繫中對上述5種病毒複閤侵染的西瓜材料進行多重RT-PCR擴增,得到與試驗設計相符的5條特異性條帶,依次是542、485、410、354和293 bp.該體繫實現瞭對侵染西瓜的5種病毒的同時檢測,極大地提高瞭檢測效率,降低瞭檢測成本,體現瞭多重RT-PCR的優越性.
근거5충병독소서호호황화협병독(Zucchini yellow mosaic virus,ZYMV)、서과화협병독(Watermelon mosaic virus,WMV)、연초화협병독(Tobacco mosaic virus,TMV)、남과화협병독(Squash mosaic virus,SqMV)화황과화협병독(Cucumber mosaic virus,CMV)적핵감산보수구서렬,설계특이성인물대,종영향다중RT-PCR(mRT-PCR)확증적인물농도、Mg2+농도、Taq DNA취합매농도、dNTPs농도、퇴화온도등방면진행반응체계적우화,건립료일충능구동시검측ZYMV、WMV、TMV、SqMV화CMV적다중RT-PCR기술체계,병진행료실제응용.재일개체계중대상술5충병독복합침염적서과재료진행다중RT-PCR확증,득도여시험설계상부적5조특이성조대,의차시542、485、410、354화293 bp.해체계실현료대침염서과적5충병독적동시검측,겁대지제고료검측효솔,강저료검측성본,체현료다중RT-PCR적우월성.
A multiplex RT-PCR(mRT-PCR)system was established for simultaneous detection on Zucchini yellow mosaic virus(ZYMV),Watermelon mosaic virus(WMV),Tobacco mosaic virus(TMV),Squash mosaic virus(SqMV)and Cucumber mosaic virus(CMV)infected watermelon by using five sets of specific primers designed on the basis of conserved sequences of the 5 viruses.The concentrations of the primers,Mg2+,Taq DNA polymerase and dNTPs were examined and the PCR conditions including annealing temperature and amplification cycles were optimized.The results showed that expected fragments of 542 bp(ZYMV),485 bp (WMV),410 bp(TMV),354 bp(SqMV)and 293 bp(CMV)were amplified and the mRT-PCR system was successfully established and the multiplex RT-PCR had been applied in practice,provided a simple,rapid and economic method for simultaneous detection of the five watermelon viruses.