Leviviricetes: expanding and restructuring the taxonomy of bacteria-infecting single-stranded RNA viruses

Callanan, Julie, Stockdale, Stephen R., Adriaenssens, Evelien M., Kuhn, Jens H., Rumnieks, Janis, Pallen, Mark J., Shkoporov, Andrey N., Draper, Lorraine A., Ross, R. Paul and Hill, Colin (2021) Leviviricetes: expanding and restructuring the taxonomy of bacteria-infecting single-stranded RNA viruses. Microbial Genomics, 7 (11). ISSN 2057-5858

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Abstract

The vast majority of described prokaryotic viruses have double-stranded or single-stranded DNA or double-stranded RNA genomes. Until 2020, a mere four prokaryotic single-stranded, positive-sense RNA viruses have been classified in two genera (Riboviria; Lenarviricota; Allassoviricetes; Leviviridae). Several recent metagenomic and metatranscriptomic studies revealed a vastly greater diversity of these viruses in prokaryotic soil communities than ever anticipated. Phylogenetic analysis of these newly discovered viruses prompted the reorganization of class Allassoviricetes, now renamed Leviviricetes, to include two orders, Norzivirales and Timlovirales, and a total of six families, 428 genera and 882 species. Here we outline the new taxonomy of Leviviricetes, approved and ratified in 2021 by the International Committee on Taxonomy of Viruses, and describe open-access hidden Markov models to accommodate the anticipated identification and future classification of hundreds, if not thousands, of additional class members into this new taxonomic framework.

Item Type: Article
Faculty \ School: Faculty of Science > School of Biological Sciences
Depositing User: LivePure Connector
Date Deposited: 12 Nov 2021 02:04
Last Modified: 26 Nov 2021 01:39
URI: https://ueaeprints.uea.ac.uk/id/eprint/82066
DOI: 10.1099/mgen.0.000686

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