鉴别诊断山羊痘、绵羊痘、羊口疮和小反刍兽疫多重PCR检测方法的建立
发布时间:2018-06-26 21:42
本文选题:多重PCR + 山羊痘病毒 ; 参考:《内蒙古农业大学》2015年硕士论文
【摘要】:山羊痘病毒、绵羊痘病毒、羊口疮病毒和小反刍兽疫病毒均可单一感染山羊和绵羊,或多重感染。为快速检测并鉴别四种病毒引起的疾病,建立多重PCR检测方法,并对建立方法进行了实验条件的优化和筛选。根据GenBank数据库收录的山羊痘病毒、绵羊痘病毒、羊口疮病毒和小反刍兽疫病毒的基因序列,用Primer Primer 5.0设计四对引物用于扩增四种病毒,其中山羊痘病毒扩增产物长度152bp,绵羊痘病毒扩增产物长度246bp,羊口疮病毒扩增产物长度355bp,小反刍兽疫病毒扩增产物长度538bp,优化后的最佳试验条件为:变性温度94℃C,退火温度53℃,循环次数为35次。所建立PCR方法对牛病毒性腹泻-黏膜病病毒、猪瘟病毒和牛传染性鼻气管炎病毒进行扩增均呈阴性,说明该试验有较好的特异性;该PCR反应体系可检测出山羊痘病毒、绵羊痘病毒、羊口疮病毒和小反刍兽疫病毒的最小量分别是0.05ng、8.36ng、0.8ng、1.3ng。结果表明本试验具有快速、特异性强的特点,可用于临床鉴别诊断山羊痘、绵羊痘、羊口疮和小反刍兽疫。
[Abstract]:Goat pox virus, sheep mouth sore virus and small ruminant zoonotic virus can be single infected goat and sheep, or multiple infections. In order to quickly detect and identify the diseases caused by four viruses, a multiplex PCR method was established, and the experimental conditions were optimized and screened. According to the gene sequence of goat pox virus, sheep mouth sore virus and ruminant virus collected in GenBank database, four pairs of primers were designed with Primer Primer 5.0 to amplify the four viruses. The length of goat pox virus amplification product is 152 BP, sheep pox virus amplification product length is 246 BP, sheep mouth sore virus amplification product length is 355 BP, small ruminant virus amplification product length is 538 BP, the optimized test conditions are as follows: denaturation temperature 94 鈩,
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