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リボウィリア（Riboviria）またはリボウイルス域 は、2018年に国際ウイルス分類委員会（ICTV）によって提案された、RNA依存性RNAポリメラーゼないしRNA依存性DNAポリメラーゼ（逆転写酵素）によってゲノムが複製されるウイルスを含む分類群 。
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 (with either RNA or DNA genomes) that encode an RNA-dependent DNA polymerase. RNA-dependent RNA polymerase (RdRp), also called RNA replicase, produces RNA ...
A retrovirus is a type of virus that inserts a DNA copy of its RNA genome into the DNA of a host cell that it invades, thus changing the genome of that cell. [2] After invading a host cell's cytoplasm, the virus uses its own reverse transcriptase enzyme to produce DNA from its RNA genome, the reverse of the usual pattern, thus retro (backwards ...
Riboviria Host DNA: €Paramavirae Riboviria: €Orthomavirae Monodnaviria Varidnaviria Duplodnaviria Cystoviridae, Picobirnaviridae Origin of herpes-like viruses from tailed bacterial viruses ...
Until recently, Negarnaviricota, included in realm Riboviria (established in 2019 ), was the only established phylum in the ICTV framework. In 2020, virus taxonomy was amended to include Negarnaviricota in the new riboviriad kingdom Orthornavirae as one of five sister phyla (TaxoProp 2019.006G.A.v1.Riboviria).
Mamastrovirus. Astroviruses ( Astroviridae) are a type of virus that was first discovered in 1975 using electron microscopes following an outbreak of diarrhea in humans. [1] In addition to humans, astroviruses have now been isolated from numerous mammalian animal species (and are classified as genus Mamastrovirus) and from avian species such as ...
Monodnaviria is a realm of viruses that includes all single-stranded DNA viruses that encode an endonuclease of the HUH superfamily that initiates rolling circle replication of the circular viral genome. Viruses descended from such viruses are also included in the realm, including certain linear single-stranded DNA (ssDNA) viruses and circular ...
