Reorganizing the family Parvoviridae: a revised taxonomy independent of the canonical approach based on host association
Parvoviridae , a diverse family of small single-stranded DNA viruses was established in 1975. It was divided into two subfamilies, Parvovirinae and Densovirinae , in 1993 to accommodate parvoviruses that infect vertebrate and invertebrate animals, respectively. This relatively straightforward segreg...
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| Vydané v: | Archives of virology Ročník 165; číslo 9; s. 2133 - 2146 |
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| Hlavní autori: | , , , , , , |
| Médium: | Journal Article |
| Jazyk: | English |
| Vydavateľské údaje: |
Vienna
Springer Vienna
01.09.2020
Springer Nature B.V |
| Predmet: | |
| ISSN: | 0304-8608, 1432-8798, 1432-8798 |
| On-line prístup: | Získať plný text |
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| Shrnutí: | Parvoviridae
, a diverse family of small single-stranded DNA viruses was established in 1975. It was divided into two subfamilies,
Parvovirinae
and
Densovirinae
, in 1993 to accommodate parvoviruses that infect vertebrate and invertebrate animals, respectively. This relatively straightforward segregation, using host association as the prime criterion for subfamily-level classification, has recently been challenged by the discovery of divergent, vertebrate-infecting parvoviruses, dubbed “chapparvoviruses”, which have proven to be more closely related to viruses in certain
Densovirinae
genera than to members of the
Parvovirinae
. Viruses belonging to these genera, namely
Brevi
-,
Hepan
- and
Penstyldensovirus
, are responsible for the unmatched heterogeneity of the subfamily
Densovirinae
when compared to the
Parvovirinae
in matters of genome organization, protein sequence homology, and phylogeny. Another genus of
Densovirinae
,
Ambidensovirus
, has challenged traditional parvovirus classification, as it includes all newly discovered densoviruses with an ambisense genome organization, which introduces genus-level paraphyly. Lastly, current taxon definition and virus inclusion criteria have significantly limited the classification of certain long-discovered parvoviruses and impedes the classification of some potential family members discovered using high-throughput sequencing methods. Here, we present a new and updated system for parvovirus classification, which includes the introduction of a third subfamily,
Hamaparvovirinae
, resolves the paraphyly within genus
Ambidensovirus
, and introduces new genera and species into the subfamily
Parvovirinae
. These proposals were accepted by the ICTV in 2020 March. |
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| Bibliografia: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23 |
| ISSN: | 0304-8608 1432-8798 1432-8798 |
| DOI: | 10.1007/s00705-020-04632-4 |