Emaravirus

Genus of viruses

Emaravirus
Symptoms of "Fig mosaic emaravirus" on fig leaves

Electron micrograph of European mountain ash ringspot-associated emaravirus and genome (bar = 100 nm)
Virus classification Edit this classification
(unranked):	Virus
Realm:	Riboviria
Kingdom:	Orthornavirae
Phylum:	Negarnaviricota
Class:	Ellioviricetes
Order:	Bunyavirales
Family:	Fimoviridae
Genus:	*Emaravirus*
Species
See text

Emaravirus is a genus of negative-strand RNA viruses which infect plants. The plant virus group is the sole genus in the family Fimoviridae.^[1] The genus has 21 species.

Structure

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Virions of this genus are between 80 and 100 nm and consists of an enveloped ribonucleocapsid that exhibits helical symmetry.^{[citation needed ]}

Genome

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The genomes are segmented, consisting of four strands of negative-sense single-stranded RNA.^{[citation needed ]}

Phylogenetics

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Emaravirus has the closest phylogenetic relationship with members of the genera Orthotospovirus and Orthobunyavirus . The 3' and 5' ends of the genomic RNAs are complementary (similar to viruses of the Bunyavirales order), with the sequence 5'-AGUAGUGUUCUCC-3' at the 5' terminus and 5'-GGAGUUCACUACU-3' at the 3' terminus. However, the number of genome segments and gene sequences distinguishes emaraviruses from bunyaviruses and tenuiviruses.^{[citation needed ]}

Taxonomy

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The following species are recognized:^[2]

References

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^ Elbeaino, T; Digiaro, M; Mielke-Ehret, N; Muehlbach, HP; Martelli, GP; Ictv Report, Consortium (November 2018). "ICTV Virus Taxonomy Profile: Fimoviridae". The Journal of General Virology. 99 (11): 1478–1479. doi:10.1099/jgv.0.001143 . PMID 30204080.
^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 19 May 2021.