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Cloning and sequencing of APXⅡA gene of 〖WTHX〗Actinobacillus pleuropneumoniae
ZHAO Weiping1, LU Zhongxin2, CHEN
Zhenwen1,
YANG Xueshan2, ZHAO Ping2, GAO
Pengcheng2, CHU Yuefeng2
(1. Center for Laboratory Animals, PLA Academy of Military Medical
Sciences,Beijing 100071,China;
2. Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences,Lanzhou 730046,China) |
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Abstract: The APXⅡA gene of 2873bp, which was amplified from Actinobacillus pleuropneumoniae (APP) serotype 7 by PCR, was cloned into the plasmid vector
pMD18T to construct the recombinantplasmid. The constructed recombinant plasmid was
analyzedby restriction enzyme digestion and sequence analysis. The result showed that the cloned gene from APP serotype 7 by us is the fulllength target gene and shares 99.7% homology with that from the APP foreign isolate strain M30602.
Key words:Actinobacillus pleuropneumoniae ; gene cloning; sequencing |