Apscaviroid is a genus of ssRNA viroids that belongs to the family Pospiviroidae . [1]
Apscaviroid is a genus of ssRNA viroids that belongs to the family Pospiviroidae . [1]
| Name | Abbr | GenBank | REFSEQ |
|---|---|---|---|
| Apple dimple fruit viroid | ADFVd | X99487 | NC_003463 |
| Apple scar skin viroid | ASSVd | X17696 | NC_001340 |
| Apscaviroid aclsvd | ACFSVd | MF521431 | N/A |
| Apscaviroid cvd-VII | CVd-VII | KX013549 | N/A |
| Apscaviroid dvd | DVd | MT013216 | N/A |
| Apscaviroid glvd | GLVd | KR605505 | NC_028131 |
| Apscaviroid lvd | LVd | MF156698 | NC_035620 |
| Apscaviroid plvd-I | PlVd-I | MN734702 | N/A |
| Apscaviroid pvd | PVd | AB366022 | NC_010308 |
| Apscaviroid pvd-2 | PVd-2 | AB817729 | NC_021720 |
| Australian grapevine viroid | AGVd | X17101 | NC_003553 |
| Citrus bent leaf viroid | CBLVd | U21125 | NC_001651 |
| Citrus dwarfing viroid | CDVd | AF447788 | NC_003264 |
| Citrus viroid V | CVdV | EF617306 | NC_010165 |
| Citrus viroid VI | CVdVI | AB019508 | NC_004359 |
| Grapevine yellow speckle viroid 1 | GYSVd1 | AF059712 | NC_001920 |
| Grapevine yellow speckle viroid 2 | GYSVd2 | J04348 | NC_003612 |
| Pear blister canker viroid | PBCVd | D12823 | NC_001830 |
Virus classification is the process of naming viruses and placing them into a taxonomic system similar to the classification systems used for cellular organisms.
Okavirus is a genus of enveloped positive-strand RNA viruses which infect crustaceans. Host organisms are mostly shrimp. It is the only genus in the family Roniviridae. Viruses associated with the genus include: gill-associated virus (GAV) which causes reddening, biofouling with exoparasites, emaciation, and massive mortality; and yellow head virus (YHV) which causes yellow head, arrest of feeding, and massive mortality. The name is derived from the 'Oka' or lymphoid organ in which the viruses are commonly detected and in which pathology occurs during acute infections. Lymphoid organs are anatomical structures common to penaeid shrimp. There are three species in this genus.
Barnaviridae is a family of non-enveloped, positive-strand RNA viruses. Cultivated mushrooms serve as natural hosts. The family has one genus, Barnavirus, which contains one species: Mushroom bacilliform virus. Diseases associated with this family includes La France disease.
Pospiviroid is a genus of ssRNA viroids that infects plants, most commonly tubers. It belongs to the family Pospiviroidae.The first viroid discovered was a pospiviroid, the PSTVd species.
The Pospiviroidae are a incertae sedis family of ssRNA viroids with 5 genra and 39 species, including the first viroid to be discovered, PSTVd, which is part of genus Pospiviroid. Their secondary structure is key to their biological activity. The classification of this family is based on differences in the conserved central region sequence. Pospiviroidae replication occurs in an asymmetric fashion via host cell RNA polymerase, RNase, and RNA ligase. its hosts are plants, specifically dicotyledons and some monocotyledons
Chrysoviridae is a family of double-stranded RNA viruses. Members of the family are called chrysoviruses.
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.
The Avsunviroidae are a family of viroids. There are four species in three genera. They consist of RNA genomes between 246 and 375 nucleotides in length. They are single-stranded covalent circles and have intramolecular base pairing. All members lack a central conserved region.
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.
Alphaflexiviridae is a family of viruses in the order Tymovirales. Plants and fungi serve as natural hosts. There are 65 species in this family, assigned to six genera. Diseases associated with this family include: mosaic and ringspot symptoms.
Hostuviroid is a genus of ssRNA viroids that includes Hop stunt viroid, a species of viroids that infects many different types of plants, including the common hop plant. It belongs to the family Pospiviroidae.
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.
Alvernaviridae is a family of non-enveloped positive-strand RNA viruses. Dinoflagellates serve as natural hosts. There is one genus in this family, Dinornavirus, which contains one species: Heterocapsa circularisquama RNA virus 01. Diseases associated with this family include host population control, possibly through lysis of the host cell.
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.
Peribunyaviridae is a family of viruses in the order Bunyavirales. Its name partially derives from Bunyamwera, Uganda, where the founding species was first isolated.
Pleolipoviridae is a family of DNA viruses that infect archaea.
Thaspiviridae is a family of incertae sedis spindle-shaped viruses. The family contains a single genus, Nitmarvirus, which contains a single species, Nitmarvirus NSV1.
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.
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