Detection and Characterization of Avastrovirus Associated with Diarrhea Isolated from Minks in China
文献类型: 外文期刊
第一作者: Sun, Na
作者: Sun, Na;Yang, Yong;Shao, Xi-Qun;Zhang, Shu-Qin;Wang, Feng-Xue;Tan, Bin;Cheng, Shi-Peng;Wen, Yong-Jun;Wang, Gui-Sheng;Tian, Fu-Lin
作者机构:
关键词: Astrovirus;Mink;Detection;Phylogenetic analysis
期刊名称:FOOD AND ENVIRONMENTAL VIROLOGY ( 影响因子:2.778; 五年影响因子:2.799 )
ISSN:
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收录情况: SCI
摘要: Astroviruses are becoming a growing concern in veterinary and public health. Many astrovirus species are associated with enteric diseases have been described in both mammalian and avian hosts. In the present study, 23 fecal samples from diarrheic minks were collected in Liaoning and Shandong Province, and an investigation of astrovirus was performed using biochemical methods and RT-PCR assay with specific primers. A total of four mink astroviral isolates were detected from sick minks with diarrhea problems. Further sequencing and characterization of the partial ORF1b gene and ORF2 gene segments revealed low sequence identities (20.0-85.3 and 31.8-87.2 %) with known astroviral strains, indicating the emergence of a novel clade of astroviruses. Some new features of the astroviral genome have also been discovered. The phylogenetic tree revealed that all samples were distantly related to mink astrovirus and were closely related to chicken astroviruses and turkey astroviruses. MK/DL-1, MK/DL-2, MK/SD-1, and MK/SD-2 formed a new clade and were found to be more closely related to astroviruses from birds than to other mink strains, indicating past cross-species transmission and considerable zoonotic potential.
分类号: TS2
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