非洲猪瘟病毒LAMP可视化快速检测方法的建立与应用
Animal Husbandry & Veterinary Medicine（2021）
Abstract
旨在建立一种适用于现场快速检测非洲猪瘟病毒(ASFV)的可视化环介导等温扩增(LAMP)方法.采用针对非洲猪瘟病毒的p72基因编码区序列,设计合成2组引物,对引物进行筛选和反应条件优化,确定敏感性与特异性,并与荧光定量PCR方法进行比较.结果:建立的LAMP方法在63℃50 min内对ASFV的检测灵敏度为10 copies/μL,与猪伪狂犬病毒(PRV)、猪瘟病毒(CSFV)、猪繁殖与呼吸综合征病毒(PRRSV)、猪细小病毒(PPV)、猪圆环病毒2型(PCV2)、猪流行性腹泻病毒(PEDV)均无交叉反应;利用该方法对300份送检的临床样品进行检测,检出阳性样品8份,与荧光定量 PCR检测结果一致.综上表明,本研究建立的方法具有特异性好、灵敏度高、快速、结果可视、设备适用范围广等优点,适用于ASFV现场快速检测.
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