Kitrinoviricota: Difference between revisions

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'''Kitrinoviricota''' is a phylum of [[virus|viruses]] that infect [[eukaryote|eukaryotic]] hosts. This phylum was established by the [[International Committee on Taxonomy of Viruses]] (ICTV) in 2020. The name of the phylum is derived from the Greek word 'kitrinos', which means 'yellow', and 'viricota', which is a suffix used in virus taxonomy.
'''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 ==
== Taxonomy ==


The phylum Kitrinoviricota is divided into two classes: [[Cossaviricetes]] and [[Kitrinoviricetes]]. These classes are further divided into orders, families, subfamilies, genera, and species. The classification of viruses within this phylum is based on their genetic characteristics and the type of hosts they infect.
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.


=== Cossaviricetes ===
=== Classes ===


Cossaviricetes is a class of viruses within the phylum Kitrinoviricota. This class includes viruses that infect a variety of eukaryotic hosts, including plants, fungi, and animals. The class is divided into two orders: [[Picornavirales]] and [[Secovirales]].
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.


=== Kitrinoviricetes ===
=== Orders ===


Kitrinoviricetes is another class of viruses within the phylum Kitrinoviricota. This class includes viruses that infect a variety of eukaryotic hosts, including plants, fungi, and animals. The class is divided into three orders: [[Tymovirales]], [[Sobelivirales]], and [[Botourmiavirales]].
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.


== Characteristics ==
== Structure ==


Viruses in the phylum Kitrinoviricota are characterized by their [[RNA]] genomes. They are [[positive-sense single-stranded RNA viruses]], which means that their genetic material can be directly translated into proteins by the host cell. These viruses are also known for their icosahedral capsids, which are protein shells that protect the viral genome.
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 (virology)|envelope]] derived from the host cell membrane.


== Pathogenesis ==
== Replication ==


Viruses in the phylum Kitrinoviricota can cause a variety of diseases in their hosts. For example, some viruses in this phylum are known to cause plant diseases, such as [[mosaic disease]] and [[leaf roll disease]]. Other viruses in this phylum can cause diseases in animals, including [[foot-and-mouth disease]] and [[hepatitis A]].
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.


== See also ==
== Host Interaction ==


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 ==
* [[RNA virus]]
* [[Riboviria]]
* [[Virus classification]]
* [[Virus classification]]
* [[Virus taxonomy]]
* [[Viral replication]]
* [[List of viruses]]
 
[[Category:Virus phyla]]
[[Category:Virology]]
[[Category:Microbiology]]


{{stub}}
[[Category:RNA viruses]]
[[Category:Virus taxonomy]]
== Kitrinoviricota gallery ==
<gallery>
File:MBio.02329-18.F4.large.jpg|MBio.02329-18.F4.large
</gallery>

Latest revision as of 05:09, 3 March 2025

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]

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]

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]

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]

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]

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]

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]

Kitrinoviricota gallery[edit]