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猪星状病毒2型PCR检测分型方法的建立及初步应用 被引量:2

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摘要 根据GenBank登的猪星状病毒2型(PAstV2)序列,设计1对引物。通过优化反应条件,首次在湖南地区检测到PAstV2型病毒。用该方法通过提取样品RNA,采用RT-PCR进行扩增,得到一条预期的特异性条带(243bp),将扩增产物进行测序分析,结果表明该序列与PAstV2型的参考序列同源性为96%。同时,用该引物检测可引起腹泻的PEDV、TGEV、CSFV和PRRSV四种病毒RNA,RT-PCR结果均为阴性。该RT-PCR的敏感性试验结果表明其最高敏感度为400 pg/μL。采用该方法对湖南境内78份猪肠道和粪便样品进行检测,发现PAstV2型的感染率达到11.5%(9/78)。结果表明该方法可以应用于临床PAstV2检测。
出处 《湖南畜牧兽医》 2016年第2期39-41,共3页 Hunan Journal of Animal Science & Veterinary Medicine
基金 国家自然科学基金(31372459)
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参考文献7

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二级参考文献8

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