Molecular characterization and phylogenetic analysis of the genome of porcine torovirus

Molecular characterization and phylogenetic analysis of the genome of porcine torovirus In this study, we amplified and sequenced the first genome of porcine torovirus (PToV SH1 strain). The genome was found to be 28,301 bp in length, sharing 79 % identity with Breda virus. It mainly consists of replicase (20,906 bp) and structural genes: spike (4,722 bp), membrane (702 bp), hemagglutinin-esterase (1,284 bp), and nucleocapsid (492 bp). Sequence alignments and structure prediction suggest genetic differences among toroviruses, mainly in NSP1 (papain-like cysteine proteinase domain). Rooted phylogenetic trees were constructed based on the 3C-like proteinase and RNA-dependent RNA polymerase genes. PToV, Berne virus and Breda virus were clustered together, forming a separate branch from white bream virus that was distant from that of the coronaviruses. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Molecular characterization and phylogenetic analysis of the genome of porcine torovirus

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Publisher
Springer Journals
Copyright
Copyright © 2014 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-013-1861-x
Publisher site
See Article on Publisher Site

Abstract

In this study, we amplified and sequenced the first genome of porcine torovirus (PToV SH1 strain). The genome was found to be 28,301 bp in length, sharing 79 % identity with Breda virus. It mainly consists of replicase (20,906 bp) and structural genes: spike (4,722 bp), membrane (702 bp), hemagglutinin-esterase (1,284 bp), and nucleocapsid (492 bp). Sequence alignments and structure prediction suggest genetic differences among toroviruses, mainly in NSP1 (papain-like cysteine proteinase domain). Rooted phylogenetic trees were constructed based on the 3C-like proteinase and RNA-dependent RNA polymerase genes. PToV, Berne virus and Breda virus were clustered together, forming a separate branch from white bream virus that was distant from that of the coronaviruses.

Journal

Archives of VirologySpringer Journals

Published: Apr 1, 2014

References

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