Nyamiviridae

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Nyamiviridae
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Virions of San Jacinto virus forming at infected cell's surface and virus genome
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(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Negarnaviricota
Class: Monjiviricetes
Order: Mononegavirales
Family:Nyamiviridae

Nyamiviridae is a family of negative-strand RNA viruses in the order Mononegavirales . [1] Ecdysozoa and birds serve as natural hosts. [2] The name is a portmanteau of Nyamanini Pan (place of isolation of type species Nyamanini virus in South Africa) and Midway Atoll (place of isolation of Midway virus in the United States) and the suffix -viridae used to denote a virus family. There are seven genera in this family. [3] [4]

Contents

History

Nyamanini virus (NYMV) and Midway virus (MDWV) were first isolated in 1957 and 1966 respectively. NYMV has been isolated from cattle egrets (species Bubulcus ibis ) and ticks (species Argas walkerae ) in Egypt, India, Nigeria, South Africa, and Thailand. MDWV has been isolated from ticks of the genus Ornithodoros collected in Midway, Kure and Manana islands and northern Honshu, Japan. Antibodies to this virus have been found in the black-tailed gull (species Larus crassirostris ) and black-crowned night heron (species Nycticorax nycticorax ).

Structure

Genomes of different nyamiviruses ONSR.Nyami.Fig2.v8.png
Genomes of different nyamiviruses

Nyamivirions are enveloped, with spherical geometries. Their diameters are around 100 to 130 nm. Nyamiviral genomes are linear, nonsegmented and bisegmented, and around 11.6 kbp in total length. The nyamiviral genome codes for six proteins. [2] [5] Of these, only two have been assigned a function: the putative nucleocapsid protein and RNA-dependent RNA polymerase.

Life cycle

Viral replication is nuclear. Entry into the host cell is achieved by attachment of the viral GP glycoproteins to host receptors, which mediates clathrin-mediated endocytosis. Replication follows the negative stranded RNA virus replication model. Negative stranded RNA virus transcription, using polymerase stuttering is the method of transcription. The virus progeny are released by budding from the infected cells. Ticks and birds serve as the natural host. [2] [5]

Taxonomy

Phylogenetic tree of Nyamiviridae ONSR.Nyami.Fig3.v4.png
Phylogenetic tree of Nyamiviridae

The family contains the following genera: [4]

Related Research Articles

<span class="mw-page-title-main">RNA virus</span> Subclass of viruses

An RNA virus is a virus—other than a retrovirus—that has ribonucleic acid (RNA) as its genetic material. The nucleic acid is usually single-stranded RNA (ssRNA) but it may be double-stranded (dsRNA). Notable human diseases caused by RNA viruses include the common cold, influenza, SARS, MERS, Covid-19, Dengue Virus, hepatitis C, hepatitis E, West Nile fever, Ebola virus disease, rabies, polio, mumps, and measles.

<i>Flaviviridae</i> Family of viruses

Flaviviridae is a family of enveloped positive-strand RNA viruses which mainly infect mammals and birds. They are primarily spread through arthropod vectors. The family gets its name from the yellow fever virus; flavus is Latin for "yellow", and yellow fever in turn was named because of its propensity to cause jaundice in victims. There are 89 species in the family divided among four genera. Diseases associated with the group include: hepatitis (hepaciviruses), hemorrhagic syndromes, fatal mucosal disease (pestiviruses), hemorrhagic fever, encephalitis, and the birth defect microcephaly (flaviviruses).

<i>Paramyxoviridae</i> Family of viruses

Paramyxoviridae is a family of negative-strand RNA viruses in the order Mononegavirales. Vertebrates serve as natural hosts. Diseases associated with this family include measles, mumps, and respiratory tract infections. The family has four subfamilies, 17 genera, and 78 species, three genera of which are unassigned to a subfamily.

<i>Morbillivirus</i> Genus of viruses

Morbillivirus is a genus of viruses in the order Mononegavirales, in the family Paramyxoviridae. Humans, dogs, cats, cattle, seals, and cetaceans serve as natural hosts. This genus includes seven species. Diseases in humans associated with viruses classified in this genus include measles; in animals, they include acute febrile respiratory tract infection. In 2013, a wave of increased death among the Common bottlenose dolphin population was attributed to morbillivirus.

<i>Mononegavirales</i> Order of viruses

Mononegavirales is an order of negative-strand RNA viruses which have nonsegmented genomes. Some common members of the order are Ebola virus, human respiratory syncytial virus, measles virus, mumps virus, Nipah virus, and rabies virus. All of these viruses cause significant disease in humans. Many other important pathogens of nonhuman animals and plants are also in the group. The order includes eleven virus families: Artoviridae, Bornaviridae, Filoviridae, Lispiviridae, Mymonaviridae, Nyamiviridae, Paramyxoviridae, Pneumoviridae, Rhabdoviridae, Sunviridae, and Xinmoviridae.

<i>Bornaviridae</i> Family of viruses

Bornaviridae is a family of negative-strand RNA viruses in the order Mononegavirales. Horses, sheep, cattle, rodents, birds, reptiles, and humans serve as natural hosts. Diseases associated with bornaviruses include Borna disease, a fatal neurologic disease of mammals restricted to central Europe; and proventricular dilatation disease (PDD) in birds. Bornaviruses may cause encephalitis in mammals like horses or sheep. The family includes 11 species assigned to three genera.

Pseudoviridae is a family of viruses, which includes three genera.

<i>Nodaviridae</i> Family of viruses

Nodaviridae is a family of nonenveloped positive-strand RNA viruses. Vertebrates and invertebrates serve as natural hosts. Diseases associated with this family include: viral encephalopathy and retinopathy in fish. There are nine species in the family, assigned to two genera.

Endornaviridae is a family of viruses. Plants, fungi, and oomycetes serve as natural hosts. There are 31 species in this family, assigned to 2 genera. Members of Alphaendornavirus infect plants, fungi and the oomycete Phytophthora sp., members of Betaendornavirus infect ascomycete fungi.

<i>Nyavirus</i> Genus of viruses

Nyavirus is a genus of negative-strand RNA viruses in the family Nyamiviridae. Ticks and birds serve as natural hosts. There are four species in this genus.

<i>Cytorhabdovirus</i> Genus of plant viruses

Cytorhabdovirus is a genus of viruses in the family Rhabdoviridae, order Mononegavirales. Plants serve as natural hosts.

Ephemerovirus is a genus of viruses in the family Rhabdoviridae, order Mononegavirales. Cattle and mosquitoes serve as natural hosts. Diseases associated with viruses in this genus include: sudden fever.

<i>Respirovirus</i> Genus of viruses

Respirovirus is a genus of viruses in the order Mononegavirales, in the family Paramyxoviridae. Rodents and human serve as natural hosts. There are seven species in this genus. Diseases associated with this genus include: croup and other acute febrile respiratory tract infections.

<span class="mw-page-title-main">Quadriviridae</span> Family of viruses

Quadriviridae is a family of double-stranded RNA viruses with a single genus Quadrivirus. The fungi Rosellinia necatrix serves as a natural host. The name of the group derives from the quadripartite genome of its members where in Latin quad means four. There is only one species in this family: Rosellinia necatrix quadrivirus 1.

Aquaparamyxovirus is a genus of viruses in the family Paramyxoviridae, order Mononegavirales. The genus includes two species. Fish serve as the natural hosts for AsaPV, in which the virus may cause proliferative gill inflammation.

Ferlavirus is a genus of viruses in the family Paramyxoviridae, order Mononegavirales. Reptiles serve as natural hosts. There is currently only one species in this genus to accommodate a single virus, Fer-de-Lance virus (FDLV).

Perhabdovirus is a genus of viruses in the family Rhabdoviridae, order Mononegavirales. Fish serve as natural hosts. Diseases associated with viruses of this genus include: breathing and swimming problems.

Tupavirus is a genus of viruses in the family Rhabdoviridae, order Mononegavirales.

<i>Pneumoviridae</i> Family of viruses

Pneumoviridae is a family of negative-strand RNA viruses in the order Mononegavirales. Humans, cattle, and rodents serve as natural hosts. Respiratory tract infections are associated with member viruses such as human respiratory syncytial virus. There are five species in the family which are divided between the genera Metapneumovirus and Orthopneumovirus. The family used to be considered as a sub-family of Paramyxoviridae, but has been reclassified as of 2016.

<i>Avian metaavulavirus 2</i> Species of virus

Avian metaavulavirus 2, formerly Avian paramyxovirus 2, is a species of virus belonging to the family Paramyxoviridae and genus Metaavulavirus. The virus is a negative strand RNA virus containing a monopartite genome. Avian metaavulavirus 2 is one of nine species belonging to the genus Metaavulavirus. The most common serotype of Avulavirinae is serotype 1, the cause of Newcastle disease (ND). Avian metaavulavirus 2 has been known to cause disease, specifically mild respiratory infections in domestic poultry, including turkeys and chickens, and has many economic effects on egg production and poultry industries. The virus was first isolated from a strain in Yucaipa, California in 1956. Since then, other isolates of the virus have been isolated worldwide.

References

  1. ↑ Dietzgen, RG; Ghedin, E; Jiāng, D; Kuhn, JH; Song, T; Vasilakis, N; Wang, D; Ictv Report, Consortium (December 2017). "ICTV Virus Taxonomy Profile: Nyamiviridae". The Journal of General Virology. 98 (12): 2914–2915. doi:10.1099/jgv.0.000973. PMC   5775900 . PMID   29120298.
  2. 1 2 3 "ICTV Report Nyamiviridae".
  3. ↑ Amarasinghe, Gaya K.; Bào, Yīmíng; Basler, Christopher F.; Bavari, Sina; Beer, Martin; Bejerman, Nicolás; Blasdell, Kim R.; Bochnowski, Alisa; Briese, Thomas (7 April 2017). "Taxonomy of the order Mononegavirales: update 2017". Archives of Virology. 162 (8): 2493–2504. doi:10.1007/s00705-017-3311-7. ISSN   1432-8798. PMC   5831667 . PMID   28389807.
  4. 1 2 "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 18 May 2021.
  5. 1 2 "Viral Zone". ExPASy. Retrieved 13 August 2015.
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