【摘要】 在云南省西北部地区进行的虫媒病毒调查中,从三带喙库蚊、中华按蚊和骚扰阿蚊中分别分离到5株病毒。全部病毒在C6/36细胞上产生细胞病变,而在BHK21细胞不产生细胞病变;电子显微镜观察可见病毒颗粒呈球形,直径约70nm(n=7),无包膜、表面存在明显刺状突起;聚丙烯酰胺凝胶电泳显示分离的病毒为12节段双链RNA病毒,病毒基因组带形呈6-5-1分布;用Kadipiro病毒的特异性引物可以扩增到目的条带,基因组第12节段全长758nt,与Kadipiro病毒原型株JKT-7075的同源性为90%,遗传进化分析显示在云南蚊虫分离的5株病毒均为呼肠孤病毒科(Reoviridae)东南亚十二节段RNA病毒属(Seadornavirus)Kadipiro病毒。本文为我国Kadipiro病毒分离的首次报道。更多还原

【Abstract】 5 strains of virus isolated from Culex tritaeniorhynchus, Anopheles sinensis and Armigeres subalbatus, which caused cytopathic effect in C6/36 cells, had been obtained in the survey of arboviruses in Northwestern Yunnan Province. China. The virus particles displayed 70 nanometers diameter (n=7) with no envelope but spikes on the surfaces. RNA-PAGE of the genomes of the isolates showed 6-5-1 profile. A fragment of the 12th segment sequence was amplified by a pair of specific primers for Kadipiro virus strain JKT-7075 in RT-PCR. The full length of the 12th segment was 758 nucleotides, BLAST analysis revealed the highest identity was 90% to JKT-7075. Phylogenetic analysis demonstrated that the isolates appeared to be Kadipiro viruses (Family Reoviridae). It was the first report of kadipiro virus isolation in China.更多还原