Kitrinoviricota
Kitrinoviricota is a phylum of RNA viruses that includes a diverse group of viruses with positive-sense single-stranded RNA genomes. These viruses are known to infect a wide range of hosts, including plants, animals, and fungi. The phylum is characterized by its unique replication mechanism and structural proteins.
Taxonomy[edit | edit source]
Kitrinoviricota is part of the larger realm of Riboviria, which encompasses all RNA viruses that replicate via an RNA-dependent RNA polymerase. Within Kitrinoviricota, there are several classes, orders, and families that further categorize the diversity of viruses based on genetic and structural characteristics.
Classes[edit | edit source]
The phylum Kitrinoviricota is divided into several classes, each containing multiple orders and families. These classes are defined based on the genetic makeup and evolutionary relationships of the viruses.
Orders[edit | edit source]
Within each class, there are multiple orders that group viruses with similar replication strategies and host ranges. The orders are further divided into families, genera, and species.
Structure[edit | edit source]
Viruses in the Kitrinoviricota phylum typically have a simple structure consisting of a capsid that encases the RNA genome. The capsid is composed of protein subunits that form a protective shell around the genetic material. Some members of this phylum may also have an envelope derived from the host cell membrane.
Replication[edit | edit source]
The replication cycle of Kitrinoviricota viruses involves the synthesis of a complementary RNA strand from the positive-sense RNA genome. This process is mediated by an RNA-dependent RNA polymerase, which is a hallmark of the Riboviria realm. The newly synthesized RNA serves as a template for the production of viral proteins and the replication of the viral genome.
Host Interaction[edit | edit source]
Kitrinoviricota viruses have evolved various mechanisms to interact with their hosts. These interactions can lead to a range of outcomes, from asymptomatic infections to severe disease. The ability of these viruses to adapt to different hosts is a key factor in their evolutionary success.
Related Pages[edit | edit source]
Kitrinoviricota gallery[edit | edit source]
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Contributors: Prab R. Tumpati, MD
