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Published in: Archives of Virology 7/2020

01-07-2020 | Original Article

Isolation and identification of two new strains of mammalian orthoreovirus from Chinese tree shrews

Authors: Xiaofei Li, Xiaomei Sun, Caixia Lu, Dexuan Kuang, Yuanyuan Han, Wenguang Wang, Pinfen Tong, Na Li, Jingxian Zhou, Jiejie Dai

Published in: Archives of Virology | Issue 7/2020

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Abstract

Chinese tree shrews have been used extensively in studies of different types of cancer and for the modeling of viral infections. In the present study, we report the isolation and characterization of two strains of mammalian orthoreovirus (MRV), MRV1/TS/2011 and MRV3/TS/2012, which were isolated from the feces of tree shrews in Yunnan, China. These two strains of MRV were isolated and cultured in both primary tree shrew intestinal epithelial cells (pTIECs) and primary tree shrew alveolar epithelial cells (pTAECs). A neutralization test using immunofluorescence was employed to determine the subtype of each isolate. Viral RNA was extracted and analyzed by polyacrylamide gel electrophoresis (PAGE), and the sequence was determined by next-generation sequencing for construction of a phylogenetic tree and analysis of gene polymorphism. Electron microscopy examination revealed the presence of virus particles with the typical morphological characteristics of MRV. Serotype analysis showed that strain MRV1/TS/2011 was of type I and strain MRV3/TS/2012 was of type III. A sequence comparison showed that the isolates were 25.4% identical in the S1 gene.
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Metadata
Title
Isolation and identification of two new strains of mammalian orthoreovirus from Chinese tree shrews
Authors
Xiaofei Li
Xiaomei Sun
Caixia Lu
Dexuan Kuang
Yuanyuan Han
Wenguang Wang
Pinfen Tong
Na Li
Jingxian Zhou
Jiejie Dai
Publication date
01-07-2020
Publisher
Springer Vienna
Published in
Archives of Virology / Issue 7/2020
Print ISSN: 0304-8608
Electronic ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-020-04635-1

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