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The order Picornavirales (Le Gall et al., 2008) consists of the families Picornaviridae, Comoviridae, Dicistroviridae, Iflaviridae, Marnaviridae and Sequiviridae and the unassigned genera Cheravirus and Sadwavirus. Two new taxa have been proposed to belong to the order, the proposed family "Schirnaviridae" and the proposed genus "Torradovirus". |
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References |
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| Le Gall, O., Christian, P., Fauquet, C.M., King, A.M.Q., Knowles, N.J., Nakashima, N., Stanway, G., Gorbalenya, E.E. (2008). Picornavirales, a proposed order of positive-sense single-stranded RNA viruses with a pseudo T = 3 virion architecture. Archives of Virology 153: 715-727. | |
| Proposed changes to the classification of the plant Picornavirales: | |
| It has recently been proposed to group the following genera in a new family called "Secoviridae": Comovirus, Fabavirus, Nepovirus, Sequivirus, Waikavirus, Cheravirus, Sadwavirus and the proposed genus "Torradovirus". It has also been proposed that the genera Comovirus, Fabavirus and Nepovirus be included in a subfamily to be called "Comovirinae". The families Comoviridae and Sequiviridae would then no longer exist. | |
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Possible representative of a new virus family: |
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Nora virus (DQ321720) |
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Habayeb, M.S., Ekengren, S.K. and Hultmark, D. (2006). Nora virus, a persistent virus in Drosophila, defines a new picorna-like virus family. J Gen Virol. 87: 3045-3051. |
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| Possible representative of a new virus family: | |
| Solenopsis invicta virus 2 (EF428566) | |
| Valles, S.M., Strong, C.A. and Hashimoto, Y. (2007). A new positive-strand RNA virus with unique genome characteristics from the red imported fire ant, Solenopsis invicta. Virology 365: 457-463. | |
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Possible new picorna-like virus |
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| ABSTRACT: Urastoma cyprinae is a turbellarian parasite infecting the gills of several marine bivalves. We observed the presence of virus-like particles (24 to 30 nm in diameter; icosahedral symmetry) arranged in paracrystalline arrays in the cytoplasm of subepidermal dorsal cells. These particles appear to be RNA viruses, possibly related to the Picornaviridae. This is the first report of viral particles in the parasite U. cyprinae. | |
| Reference | |
| Crespo-González, C., Rodríguez-Domínguez, H., Soto-Búa, M., Segade, P., Iglesias, R., Arias-Fernández, C. and García-Estévez, J.M. (2008). Virus-like particles in Urastoma cyprinae, a turbellarian parasite of Mytilus galloprovincialis. Dis. Aquat. Organ. 79: 83-86. | |
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