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طبقه بندی ویروس ها – قسمت دوم

آبان ۱۸ام, ۱۳۹۰ | No Comments | Posted in ویروس شناسی

RNA viruses

dsRNA viruses (double stranded RNA)

  • Family Cystoviridae

    • Genus Cystovirus; type species: Pseudomonas phage ψ6

  • Family Reoviridae

  • Genus Orthoreovirus; type species: Mammalian orthoreovirus

  • Genus Orbivirus; type species: Bluetongue virus

  • Genus Rotavirus; type species: Rotavirus A (causes diarrhea)

  • Genus Coltivirus; type species: Colorado tick fever virus

  • Genus Aquareovirus; type species: Aquareovirus A

  • Genus Cypovirus; type species: Cypovirus 1

  • Genus Fijivirus; type species: Fiji disease virus

  • Genus Phytoreovirus; type species: Rice dwarf virus

  • Genus Oryzavirus; type species: Rice ragged stunt virus

  • Genus Aquabirnavirus; type species: Infectious pancreatic necrosis virus

  • Genus Avibirnavirus; type species: Infectious bursal disease virus

  • Genus Entomobirnavirus; type species: Drosophila X virus

  • Genus Totivirus; type species: Saccharomyces cerevisiae virus L-A

  • Genus Giardiavirus; type species: Giardia lamblia virus

  • Genus Leishmaniavirus; type species: Leishmania RNA virus 1-1

  • Family Birnaviridae

  • Family Totiviridae

 

(+)ssRNA viruses (positive single stranded RNA)

  • Order Nidovirales

    • Family Arteriviridae

      • Genus Arterivirus; type species: Equine arteritis virus

    • Family Coronaviridae

    • Genus Coronavirus; type species: Infectious bronchitis virus

    • Genus Torovirus; type species: Equine torovirus

    • Genus Okavirus; type species: Gill-associated virus

    • Family Roniviridae

 

طبقه بندی ویروس ها بر اساس سیستم ICTV

The International Committee on Taxonomy of Viruses: 

  • Order (-virales )
    • Family (-viridae )
      • Subfamily (-virinae )
        • Genus (-virus )
          • Species

 

طبقه بندی ویروس ها بر اساس سیستم LHT

سیستم LHT طبقه بندی ویروس بر روی ماهیت فیزیکی و شیمیایی مانند اسید نوکلئیک (DNA یا RNA)، تقارن (Helical or Icosahedral or Complex)، حضور پاکت،قطر کپسید، تعداد capsomers :

  • Phylum Vira (divided into 2 subphyla)
  • Subphylum Deoxyvira (DNA viruses)
  • Class Deoxybinala (dual symmetry)
  • Order Urovirales
  • Family Phagoviridae
  • Class Deoxyhelica (Helical symmetry)
  • Order Chitovirales
  • Family Poxviridae
  • Class Deoxycubica (cubical symmetry)
  • Order Peplovirales
  • Family Herpesviridae (162 capsomeres)
  • Order Haplovirales (no envelope)
  • Family Iridoviridae (812 capsomeres)
  • Family Adenoviridae (252 capsomeres)
  • Family Papiloviridae (72 capsomeres)
  • Family Paroviridae (32 capsomeres)
  • Family Microviridae (12 capsomeres)
  • Subphylum Ribovira (RNA viruses)
  • Class Ribocubica
  • Order Togovirales
  • Family Arboviridae
  • Order Lymovirales
  • Family Napoviridae
  • Family Reoviridae
  • Class Ribohelica
  • Order Sagovirales
  • Family Stomataviridae
  • Family Paramyxoviridae
  • Family Myxoviridae
  • Order Rhabdovirales
  • Suborder Flexiviridales
  • Family Mesoviridae
  • Family Peptoviridae
  • Suborder Rigidovirales
  • Family Pachyviridae
  • Family Protoviridae
  • Family Polichoviridae

 

 

Subviral agents

The following agents are smaller than viruses but have some of their properties.

Viroids

  • Family Avsunviroidae
    • Genus Avsunviroid; type species: Avocado sunblotch viroid
    • Genus Pelamoviroid; type species: Peach latent mosaic viroid
    • Genus Elaviroid; type species: Eggplant latent viroid'
  • Family Pospiviroidae
    • Genus Pospiviroid; type species: Potato spindle tuber viroid
    • Genus Hostuviroid; type species: Hop stunt viroid
    • Genus Cocadviroid; type species: Coconut cadang-cadang viroid
    • Genus Apscaviroid; type species: Apple scar skin viroid
    • Genus Coleviroid; type species: Coleus blumei viroid 1

Satellites

Main article: Satellite (biology)

Satellites depend on co-infection of a host cell with a helper virus for productive multiplication. Their nucleic acids have substantially distinct nucleotide sequences from either their helper virus or host. When a satellite subviral agent encodes the coat protein in which it is encapsulated, it is then called a satellite virus.

  • Satellite viruses
    • Single-stranded RNA satellite viruses
      • Subgroup 1: Chronic bee-paralysis satellite virus
      • Subgroup 2: Tobacco necrosis satellite virus
  • Satellite nucleic acids
  • Single-stranded satellite DNAs
  • Double-stranded satellite RNAs
  • Single-stranded satellite RNAs
    • Subgroup 1: Large satellite RNAs
    • Subgroup 2: Small linear satellite RNAs
    • Subgroup 3: Circular satellite RNAs (virusoids)

Prions

Prions, named for their description as "proteinaceous and infectious particles", lack any detectable (as of 2002) nucleic acids or virus-like particles. They resist inactivation procedures that normally affect nucleic acids.

  • Mammalian prions:
    • Agents of spongiform encephalopathies
  • Fungal prions:
    • PSI+ prion of Saccharomyces cerevisiae
    • URE3 prion of Saccharomyces cerevisiae
    • RNQ/PIN+ prion of Saccharomyces cerevisiae
    • Het-s prion of Podospora anserina
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