| Deltasatellite | |
|---|---|
Virus classification  | |
| (unranked): | Virus |
| Family: | Tolecusatellitidae |
| Genus: | Deltasatellite |
| Species | |
| Synonyms | |
tomato leaf curl deltasatellite
| |
Deltasatellite is a genus of family Tolecusatellitidae containing 12 species. [1]
| Deltasatellite | |
|---|---|
| Virus classification | |
| (unranked): | Virus |
| Family: | Tolecusatellitidae |
| Genus: | Deltasatellite |
| Species | |
| Synonyms | |
tomato leaf curl deltasatellite
| |
Deltasatellite is a genus of family Tolecusatellitidae containing 12 species. [1]
The name Deltasatellite is a combination of Delta, often used in molecular biology to indicate a mutation or deletion, and satellitidae, the fact that it is a satellite. [2]
The species are ssDNA unless specified ssDNA(+)
| Name | Abbr | GenBank | REFSEQ |
|---|---|---|---|
| Croton yellow vein deltasatellite | CrYVD | AJ968684 | N/A |
| Desmodium leaf distortion deltasatellite ssDNA(+) | DesLDD | MF773920 | NC_055550 |
| Malvastrum leaf curl deltasatellite | MaLCuD | KF433066 | NC_021929 |
| Sida golden yellow vein deltasatellite 1 | SiGYVD1 | JN986808 | NC_043200 |
| Sida golden yellow vein deltasatellite 2 | SiGYVD2 | JN819490 | NC_043201 |
| Sida golden yellow vein deltasatellite 3 | SiGYVD3 | JN819498 | NC_043202 |
| sweet potato leaf curl deltasatellite 1 | SPLCD1 | FJ914390 | NC_016536 |
| Sweet potato leaf curl deltasatellite 2 | SPLCD2 | KF716173 | NC_025220 |
| Sweet potato leaf curl deltasatellite 3 | SPLCD3 | KT099179 | NC_043203 |
| Tomato leaf curl deltasatellite | ToLCD | U74627 | NC_002743 |
| Tomato yellow leaf distortion deltasatellite 1 | ToYLDD1 | JN819495 | NC_043204 |
| Tomato yellow leaf distortion deltasatellite 2 | ToYLDD2 | KU232893 | NC_043205 |
Virus classification is the process of naming viruses and placing them into a taxonomic system similar to the classification systems used for cellular organisms.
Parvoviruses are a family of animal viruses that constitute the family Parvoviridae. They have linear, single-stranded DNA (ssDNA) genomes that typically contain two genes encoding for a replication initiator protein, called NS1, and the protein the viral capsid is made of. The coding portion of the genome is flanked by telomeres at each end that form into hairpin loops that are important during replication. Parvovirus virions are small compared to most viruses, at 23–28 nanometers in diameter, and contain the genome enclosed in an icosahedral capsid that has a rugged surface.
Geminiviridae is a family of plant viruses that encode their genetic information on a circular genome of single-stranded (ss) DNA. There are 520 species in this family, assigned to 14 genera. Diseases associated with this family include: bright yellow mosaic, yellow mosaic, yellow mottle, leaf curling, stunting, streaks, reduced yields. They have single-stranded circular DNA genomes encoding genes that diverge in both directions from a virion strand origin of replication. According to the Baltimore classification they are considered class II viruses. It is the largest known family of single stranded DNA viruses.
The International Committee on Taxonomy of Viruses (ICTV) authorizes and organizes the taxonomic classification of and the nomenclatures for viruses. The ICTV has developed a universal taxonomic scheme for viruses, and thus has the means to appropriately describe, name, and classify every virus that affects living organisms. The members of the International Committee on Taxonomy of Viruses are considered expert virologists. The ICTV was formed from and is governed by the Virology Division of the International Union of Microbiological Societies. Detailed work, such as delimiting the boundaries of species within a family, typically is performed by study groups of experts in the families.
Baltimore classification is a system used to classify viruses based on their manner of messenger RNA (mRNA) synthesis. By organizing viruses based on their manner of mRNA production, it is possible to study viruses that behave similarly as a distinct group. Seven Baltimore groups are described that take into consideration whether the viral genome is made of deoxyribonucleic acid (DNA) or ribonucleic acid (RNA), whether the genome is single- or double-stranded, and whether the sense of a single-stranded RNA genome is positive or negative.
Guttaviridae is a family of viruses. Archaea serve as natural hosts. There are two genera in this family, containing one species each. The name is derived from the Latin gutta, meaning 'droplet'.
Rhizidiovirus is a genus of viruses. Stramenopiles serve as natural hosts. There is only one species in this genus: Rhizidiomyces virus.
Bottigliavirus is the only genus in the family Ampullaviridae and contains 3 species. Ampullaviridae infect archaea of the genus Acidianus. The name of the family and genus is derived from the Latin word for bottle, ampulla, due to the virions having the shape of a bottle. The family was first described during an investigation of the microbial flora of hot springs in Italy.
Dinodnavirus is a genus of viruses that infect dinoflagellates. This genus belongs to the clade of nucleocytoplasmic large DNA viruses. The only species in the genus is Heterocapsa circularisquama DNA virus 01.
Babuvirus is a genus of viruses, in the family Nanoviridae. Musa species serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: stunting, severe necrosis and early plant death. BBTV induces banana bunchy top disease (BBTD).
Lambdatorquevirus is a genus of viruses, in the family Anelloviridae. Sea lions serve as natural hosts. There are six species in this genus.
Spiraviridae is a family of incertae sedis viruses that replicate in hyperthermophilic archaea of the genus Aeropyrum, specifically Aeropyrum pernix.The family contains one genus, Alphaspiravirus, which contains one species, Aeropyrum coil-shaped virus. The virions of ACV are non-enveloped and in the shape of hollow cylinders that are formed by a coiling fiber that consists of two intertwining halves of the circular DNA strand inside a capsid. An appendage protrudes from each end of the cylindrical virion. The viral genome is ssDNA(+) and encodes for significantly more genes than other known ssDNA viruses. ACV is also unique in that it appears to lack its own enzymes to aid replication, instead likely using the host cell's replisomes. ACV has no known relation to any other archaea-infecting viruses, but it does share its coil-like morphology with some other archaeal viruses, suggesting that such viruses may be an ancient lineage that only infect archaea.
Riboviria is a realm of viruses that includes all viruses that use a homologous RNA-dependent polymerase for replication. It includes RNA viruses that encode an RNA-dependent RNA polymerase, as well as reverse-transcribing viruses that encode an RNA-dependent DNA polymerase. RNA-dependent RNA polymerase (RdRp), also called RNA replicase, produces RNA from RNA. RNA-dependent DNA polymerase (RdDp), also called reverse transcriptase (RT), produces DNA from RNA. These enzymes are essential for replicating the viral genome and transcribing viral genes into messenger RNA (mRNA) for translation of viral proteins.
In virology, realm is the highest taxonomic rank established for viruses by the International Committee on Taxonomy of Viruses (ICTV), which oversees virus taxonomy. Six virus realms are recognized and united by specific highly conserved traits:
Pleolipoviridae is a family of DNA viruses that infect archaea.
Bacilladnaviridae is a family of single-stranded DNA viruses that primarily infect diatoms.
Thaspiviridae is a family of incertae sedis spindle-shaped viruses. The family contains a single genus, Nitmarvirus, which contains a single species, Nitmarvirus NSV1.
Tolecusatellitidae is a incertae sedis ssDNA/ssDNA(+) family of biological satellites. The family contains two genera and 131 species. This family of viruses depend on the presence of another virus to replicate their genomes, as such they have minimal genomes with very low genomic redundancy.
Adnaviria is a realm of viruses that includes archaeal viruses that have a filamentous virion and a linear, double-stranded DNA genome. The genome exists in A-form (A-DNA) and encodes a dimeric major capsid protein (MCP) that contains the SIRV2 fold, a type of alpha-helix bundle containing four helices. The virion consists of the genome encased in capsid proteins to form a helical nucleoprotein complex. For some viruses, this helix is surrounded by a lipid membrane called an envelope. Some contain an additional protein layer between the nucleoprotein helix and the envelope. Complete virions are long and thin and may be flexible or a stiff like a rod.
Betasatellite is a genus of family Tolecusatellitidae containing 119 species.
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