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Nature of Genome:
General Host Type:
Morphology:

ssDNA
Bacteria, Spiroplasma
not enveloped, isometric

Family

00.042.  Microviridae


 

Taxonomic Structure of the Family
 

Family         00.042. Microviridae
Genus                      00.042.0.01. Microvirus
Genus                      00.042.0.02. Spiromicrovirus
Genus                      00.042.0.03. Bdellomicrovirus
Genus                      00.042.0.04. Chlamydiamicrovirus


Genus

00.042.0.01.   Microvirus

Type Species

00.042.0.01.001.     Enterobacteria phage ϕX174

List of Species Demarcation Criteria in the Genus

Currently, species demarcation criteria are temperature and host range. However, both phenotypes can be changed by single point mutations. Therefore, these criteria may not be rigorous for distinguishing between species. DNA sequencing has led to questions regarding the criteria for defining strains and species in the Microviridae. Species demarcation criteria should be re-examined.

List of Species in the Genus

The ICTVdB virus code and the viruses. Official virus species names are in italics. Tentative virus species names, alternative names ( ), isolates, strains, serotypes, subspecies, or rejected names are not italicized.
 
Virus codes, virus names, genome sequence accession numbers [ ] and assigned abbreviations ( ), are:

Species, their serotypes, strains and isolates

00.042.0.01.007.

Enterobacteria phage α3

[NC_001270]

00.042.0.01.007.00.001.

    Enterobacteria phage α3

[X60322]

(α3)

00.042.0.01.007.

    (Enterobacteria phage alpha3)

00.042.0.01.018.

Enterobacteria phage G4

[NC_001420]

00.042.0.01.018.00.001.

    Enterobacteria phage G4

[J02454]

(G4)

00.042.0.01.018.00.001.

    Enterobacteria phage G4

[V00657]

(ϕK)

00.042.0.01.032.

Enterobacteria phage ϕK

[NC_001730]

00.042.0.01.032.00.001.

    Enterobacteria phage ϕK

[X60323]

(ϕK)

00.042.0.01.032.

    (Enterobacteria phage phiK)

00.042.0.01.015.

Enterobacteria phage ϕX174

[NC_001422]

00.042.0.01.015.00.001.

    Enterobacteria phage ϕX174

[J02482]

(ϕX174)

00.042.0.01.015.00.001.

    (Enterobacteria phage phiX174)

00.042.0.01.015.

    (Enterobacteria phage fX174)

00.042.0.01.015.

Enterobacteria phage ϕX174

[NC_001424]

00.042.0.01.015.00.002.

    Enterobacteria phage S13

[M14428]

(S13)

00.042.0.01.024.

Enterobacteria phage St-1

00.042.0.01.024.00.001.

    Enterobacteria phage St-1

[J02501]

(St-1)























Tentative Species in the Genus

00.042.0.81.001.

Enterobacteria phage 1ϕ1

00.042.0.81.001.00.001.

    Enterobacteria phage 1ϕ1

(1ϕ1)

00.042.0.81.001.

    (Enterobacteria phage 1phi1)

00.042.0.81.002.

Enterobacteria phage 1ϕ3

00.042.0.81.002.00.001.

    Enterobacteria phage 1ϕ3

(1ϕ3)

00.042.0.81.002.

    (Enterobacteria phage 1phi3)

00.042.0.81.003.

Enterobacteria phage 1ϕ7

00.042.0.81.003.00.001.

    Enterobacteria phage 1ϕ7

(1ϕ7)

00.042.0.81.003.

    (Enterobacteria phage 1phi7)

00.042.0.81.004.

Enterobacteria phage 1ϕ9

00.042.0.81.004.00.001.

    Enterobacteria phage 1ϕ9

(1ϕ9)

00.042.0.81.004.

    (Enterobacteria phage 1phi9)

00.042.0.81.005.

Enterobacteria phage 2D/13

00.042.0.81.005.00.001.

    Enterobacteria phage 2D/13

(2D/13)

00.042.0.81.006.

Enterobacteria phage α10

00.042.0.81.006.00.001.

    Enterobacteria phage α10

(α10)

00.042.0.81.006.

    (Enterobacteria phage alpha10)

00.042.0.81.008.

Enterobacteria phage BE/1

00.042.0.81.008.00.001.

    Enterobacteria phage BE/1

(BE/1)

00.042.0.81.009.

Enterobacteria phage δ1

00.042.0.81.009.00.001.

    Enterobacteria phage δ1

(δ1)

00.042.0.81.009.

    (Enterobacteria phage delta1)

00.042.0.81.010.

Enterobacteria phage dϕ3

00.042.0.81.010.00.001.

    Enterobacteria phage dϕ3

(dϕ3)

00.042.0.81.010.

Enterobacteria phage d?3

00.042.0.81.010.

    (Enterobacteria phage dphi3)

00.042.0.81.011.

Enterobacteria phage dϕ4

00.042.0.81.011.00.001.

    Enterobacteria phage dϕ4

(dϕ4)

00.042.0.81.011.

    (Enterobacteria phage dphi4)

00.042.0.81.012.

Enterobacteria phage dϕ5

00.042.0.81.012.00.001.

    Enterobacteria phage dϕ5

(dϕ5)

00.042.0.81.012.

    (Enterobacteria phage dphi5)

00.042.0.81.013.

Enterobacteria phage ϕA

00.042.0.81.013.00.001.

    Enterobacteria phage ϕA

(ϕA)

00.042.0.81.013.

    (Enterobacteria phage phiA)

00.042.0.81.014.

Enterobacteria phage ϕR

00.042.0.81.014.00.001.

    Enterobacteria phage ϕR

(ϕR)

00.042.0.81.014.

    (Enterobacteria phage phiR)

00.042.0.81.016.

Enterobacteria phage G13

00.042.0.81.016.00.001.

    Enterobacteria phage G13

(G13)

00.042.0.81.017.

Enterobacteria phage G14

00.042.0.81.017.00.001.

    Enterobacteria phage G14

[M10632]

(G14)

00.042.0.81.019.

Enterobacteria phage G6

00.042.0.81.019.00.001.

    Enterobacteria phage G6

(G6)

00.042.0.81.020.

Enterobacteria phage η8

00.042.0.81.020.00.001.

    Enterobacteria phage η8

(η8)

00.042.0.81.020.

    (Enterobacteria phage eta8)

00.042.0.81.021.

Enterobacteria phage M20

00.042.0.81.021.00.001.

    Enterobacteria phage M20

(M20)

00.042.0.81.022.

Enterobacteria phage δ6

00.042.0.81.022.00.001.

    Enterobacteria phage δ6

(δ6)

00.042.0.81.022.

    (Enterobacteria phage o6)

(o6)

00.042.0.81.022.

    (Enterobacteria phage delta6)

00.042.0.81.025.

Enterobacteria phage U3

00.042.0.81.025.00.001.

    Enterobacteria phage U3

[M10630]

(U3)

00.042.0.81.026.

Enterobacteria phage WA/1

00.042.0.81.026.00.001.

    Enterobacteria phage WA/1

(WA/1)

00.042.0.81.027.

Enterobacteria phage WF/1

00.042.0.81.027.00.001.

    Enterobacteria phage WF/1

(WF/1)

00.042.0.81.028.

Enterobacteria phage WW/1

00.042.0.81.028.00.001.

    Enterobacteria phage WW/1

(WW/1)

00.042.0.81.029.

Enterobacteria phage ζ3

00.042.0.81.029.00.001.

    Enterobacteria phage ζ3

(ζ3)

00.042.0.81.029.

    (Enterobacteria phage zeta3)


















































































Genus

00.042.0.04.   Chlamydiamicrovirus

Type Species

00.042.0.04.001.     Chlamydia phage 1

List of Species Demarcation Criteria in the Genus

There are no formal criteria for species demarcation.

List of Species in the Genus

The ICTVdB virus code and the viruses. Official virus species names are in italics. Tentative virus species names, alternative names ( ), isolates, strains, serotypes, subspecies, or rejected names are not italicized.
 
Virus codes, virus names, genome sequence accession numbers [ ] and assigned abbreviations ( ), are:

Species, their serotypes, strains and isolates

00.042.0.04.001.

Chlamydia phage 1

[NC_001741]

00.042.0.04.001.00.001.

    Chlamydia phage 1

[D00624]

(Chp-1)

00.042.0.04.003.

Chlamydia phage 2

[NC_002194]

00.042.0.04.003.00.001.

    Chlamydia phage 2

[AJ270057]

(Chp-2)

00.042.0.04.004.

Chlamydia pneumoniae phage CPAR39

[NC_002180]

00.042.0.04.004.00.001.

    Chlamydia pneumoniae phage CPAR39

[AE002163]

(ϕCPAR39)

00.042.0.04.004.

    (Chlamydia pneumoniae phage ϕCPAR39)

(ϕCPAR39)

00.042.0.04.002.

Guinea pig Chlamydia phage

[NC_001998]

00.042.0.04.002.00.001.

    Guinea pig Chlamydia phage

[U41758]

(ϕCPG1)

00.042.0.04.002.

    (Guinea pig chlamydia phage CPG1)















Tentative Species in the Genus

None reported.

Genus

00.042.0.03.   Bdellomicrovirus

Type Species

00.042.0.03.001.     Bdellovibrio phage MAC 1

List of Species Demarcation Criteria in the Genus

There are no formal criteria for species demarcation.

List of Species in the Genus

The ICTVdB virus code and the viruses. Official virus species names are in italics. Tentative virus species names, alternative names ( ), isolates, strains, serotypes, subspecies, or rejected names are not italicized.
 
Virus codes, virus names, genome sequence accession numbers [ ] and assigned abbreviations ( ), are:

Species, their serotypes, strains and isolates

00.042.0.03.008.

Bdellovibrio phage ϕMH2K

[NC_002643]

00.042.0.03.008.00.001.

    Bdellovibrio phage ϕMH2K

[AF306496]

(ϕMH2K)

00.042.0.03.009.

Bdellovibrio phage MAC 1

00.042.0.03.009.00.001.

    Bdellovibrio phage MAC 1

(MAC-1)








Tentative Species in the Genus

00.042.0.83.002.

Bdellovibrio phage MAC 1’

00.042.0.83.002.00.001.

    Bdellovibrio phage MAC 1’

(MAC-1')

00.042.0.83.003.

Bdellovibrio phage MAC 2

00.042.0.83.003.00.001.

    Bdellovibrio phage MAC 2

(MAC-2)

00.042.0.83.004.

Bdellovibrio phage MAC 4

00.042.0.83.004.00.001.

    Bdellovibrio phage MAC 4

(MAC-4)

00.042.0.83.005.

Bdellovibrio phage MAC 4’

00.042.0.83.005.00.001.

    Bdellovibrio phage MAC 4’

(MAC-4')

00.042.0.83.006.

Bdellovibrio phage MAC 5

00.042.0.83.006.00.001.

    Bdellovibrio phage MAC 5

(MAC-5)

00.042.0.83.007.

Bdellovibrio phage MAC 7

00.042.0.83.007.00.001.

    Bdellovibrio phage MAC 7

(MAC-7)

00.042.0.83.008.

Bdellovibrio phage ϕCPG1

00.042.0.83.008.00.001.

    Bdellovibrio phage ϕCPG1

(ϕCPG1)




















Genus

00.042.0.02.   Spiromicrovirus

Type Species

00.042.0.02.001.     Spiroplasma phage 4

List of Species Demarcation Criteria in the Genus

The one isolated phage of this group infects Spiroplasma melliferum.

List of Species in the Genus

The ICTVdB virus code and the viruses. Official virus species names are in italics. Tentative virus species names, alternative names ( ), isolates, strains, serotypes, subspecies, or rejected names are not italicized.
 
Virus codes, virus names, genome sequence accession numbers [ ] and assigned abbreviations ( ), are:

Species, their serotypes, strains and isolates

00.042.0.02.001.

Spiroplasma phage 4

[NC_003438]

00.042.0.02.001.00.001.

    Spiroplasma phage 4

[M17988]

(SpV4)




Tentative Species in the Genus

None reported.

List of Unassigned Viruses in the Family

None reported.

Similarity with other Taxa

In some instances ssDNA genomes of viruses in the family Microviridae are similar in organization to those of members of the family Inoviridae. Structurally, viruses in the family Microviridae resemble those in the family Parvoviridae. Atomic structures of the CPs are rich in insertion loops coming off the β-barrel core. Similarities between the capsids of members of the genera Spiromicrovirus, Bdellomicrovirus, and Chlamydiamicrovirus, and those of the members of the family Parvoviridae, are more pronounced due to the complex interactions of CPs at the three-fold axes of symmetry.

Derivation of Names

Micro: From the Greek word micros, for small.

References

Collated from VIIIth ICTV Report

Contributed by

Fane B.

Cite this publication as: Index of Viruses - Microviridae (2006). In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C (Ed), Columbia University, New York, USA. http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_index.htm

Version 4 is based on Virus Taxonomy, Classification and Nomenclature of Viruses, 8th ICTV Report of the International Committee on Taxonomy of Viruses. Fauquet, CM, Mayo, MA, Maniloff, J, Desselberger, U, and Ball, LA (EDS) (2005) Elsevier/Academic Press, pp. 1259.

Additional References

Reference List from the 8th ICTV Report
ICTVdB taxon description
ICTVdB Picture Gallery

References to sequence databases at GenBank and PubMed Central:
PubMed Central References; nucleotide sequences; complete genomes



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