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The new scope of virus taxonomy: partitioning the virosphere into 15 hierarchical ranks

Alexander E. Gorbalenya 1, 2, * M Krupovic 3 Arcady R. Mushegian 4 Andrew M Kropinski 5 Stuart G Siddell 6, * Arvind Varsani 7 Michael J. Adams 8 Andrew J. Davison 9 Bas E Dutilh 10, 11 Balázs Harrach 12 Robert L. Harrison 13 Sandra Junglen 14 Andrew M. Q. King 15 Nick J Knowles 15 Elliot J. Lefkowitz 16 Max L. Nibert 17 Luisa Rubino 18 Sead Sabanadzovic 19 Hélène Sanfaçon 20 Peter Simmonds 21 Peter J Walker 22 Francisco Murilo Zerbini 23 Jens H Kuhn 24, *
Abstract : Virus taxonomy emerged as a discipline in the middle of the twentieth century. Traditionally, classification by virus taxonomists has been focussed on the grouping of relatively closely related viruses. However, during the past few years, the International Committee on Taxonomy of Viruses (ICTV) has recognized that the taxonomy it develops can be usefully extended to include the basal evolutionary relationships among distantly related viruses. Consequently, the ICTV has changed its Code to allow a 15-rank classification hierarchy that closely aligns with the Linnaean taxonomic system and may accommodate the entire spectrum of genetic divergence in the virosphere. The current taxonomies of three human pathogens, Ebola virus, severe acute respiratory syndrome coronavirus and herpes simplex virus 1 are used to illustrate the impact of the expanded rank structure. This new rank hierarchy of virus taxonomy will stimulate further research on virus origins and evolution, and vice versa, and could promote crosstalk with the taxonomies of cellular organisms.
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Alexander E. Gorbalenya, M Krupovic, Arcady R. Mushegian, Andrew M Kropinski, Stuart G Siddell, et al.. The new scope of virus taxonomy: partitioning the virosphere into 15 hierarchical ranks. Nature Microbiology, Nature Publishing Group, 2020, 5 (5), pp.668-674. ⟨10.1038/s41564-020-0709-x⟩. ⟨pasteur-02557155⟩

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