Coronaviridae

Source: Wikipedia, the free encyclopedia.
Coronaviridae
Coronavirus
Diagram,
electron micrograph, and genome of coronavirus types
.
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Nidovirales
Suborder: Cornidovirineae
Family: Coronaviridae
Subfamilies and genera

Coronaviridae is a

Orthocoronavirinae; the members of the latter are known as coronaviruses
.

The viral genome is 26–32

solar corona.[1][2][3]

Virology

Replication cycle of a coronavirus

The 5' and 3' ends of the genome have a

viral budding.[5]

Genetic recombination can occur when at least two viral genomes are present in the same infected host cell. RNA recombination appears to be a major driving force in coronavirus evolution. Recombination can determine genetic variability within a CoV species, the capability of a CoV species to jump from one host to another and, infrequently, the emergence of a novel CoV.[6] The exact mechanism of recombination in CoVs is not known, but likely involves template switching during genome replication.[6]

Taxonomy

Taxonomy of family Coronaviridae with species pathogenic to humans

The family Coronaviridae is organized in 2 sub-families, 5 genera, 26 sub-genera, and 46 species.[7] Additional species are pending or tentative.[8]

  • Coronaviridae
    • Orthocoronavirinae[9]
    • Letovirinae
      • Alphaletovirus
        • Milecovirus
          • Microhyla letovirus 1

Coronavirus

Main article: Coronavirus

Coronavirus is the common name for Coronaviridae and Orthocoronavirinae, also called Coronavirinae.

kilobases, among the largest for an RNA virus (second only to a 41-kb nidovirus recently discovered in planaria).[13]

Phylogenetic tree of Coronaviridae with host species indicated by color

Orthocoronavirinae taxonomy

References

  1. PMID 34063739
    .
  2. S2CID 218627729
    , retrieved 2020-06-08
  3. PMID 30199753
    .
  4. PMID 25105276
    .
  5. PMID 31133031
    .
  6. ^
    PMID 27012512
  7. ^ "Virus Taxonomy: 2019 Release". talk.ictvonline.org. International Committee on Taxonomy of Viruses. Retrieved 11 May 2020.
  8. PMID 32123347
    .
  9. PMID 30832341
    .
  10. ^ "2017.012-015S" (xlsx). International Committee on Taxonomy of Viruses (ICTV). October 2018. Archived from the original on 14 May 2019. Retrieved 24 January 2020.
  11. ^ "ICTV Taxonomy history: Orthocoronavirinae". International Committee on Taxonomy of Viruses (ICTV). Retrieved 24 January 2020.
  12. ^ "The 2019–2020 Novel Coronavirus (Severe Acute Respiratory Syndrome Coronavirus 2) Pandemic: A Joint American College of Academic International Medicine‑World Academic Council of Emergency Medicine Multidisciplinary COVID‑19 Working Group Consensus Paper". ResearchGate. Retrieved May 16, 2020.
  13. PMID 30383829
    .

External links
Wikimedia Commons has media related to Coronaviridae.
Wikispecies has information related to Coronaviridae.