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Nature of Genome:
General Host Type:
Morphology:

positive-stranded ssRNA
Plants
not enveloped, filamentous


Family

00.017.  Closteroviridae


 

Taxonomic Structure of the Family

 

Family         00.017. Closteroviridae
Genus                      00.017.0.01. Closterovirus
Genus                      00.017.0.03. Ampelovirus
Genus                      00.017.0.02. Crinivirus
Genus                      00.017.0.00. unassigned


Genus

00.017.0.01.   Closterovirus

Type Species

00.017.0.01.001.     Beet yellows virus

List of Species Demarcation Criteria in the Genus

The criteria demarcating species in the genus are:
  • Particle size,
  • Size of CP, as determined by deduced amino acid sequence data,
  • Serological specificity using discriminatory monoclonal or polyclonal antibodies,
  • Genome structure and organization (number and relative location of the ORFs),
  • Amino acid sequence of relevant gene products (CP, CPm, HSP70h) differing by more than 10%,
  • Vector species and specificity,
  • Magnitude and specificity of natural and experimental host range,
  • Cytopathological features (i.e., aspect of inclusion bodies and origin of cytoplasmic vesicles).
  • List of Species in the Genus

    The ICTVdB virus code and the viruses. Official virus species names are in italics, CMI/AAB description # ( ). 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

    1. Aphid-transmitted

    00.017.0.01.003.

    Beet yellow stunt virus

    (207)

    00.017.0.01.003.00.001.

        Beet yellow stunt virus

    [U51931]

    (BYSV)

    00.017.0.01.004.

    Beet yellows virus

    (377)

    00.017.0.01.004.00.002.

        Beet yellows virus, Ukraine isolate

    [X73476]

    (BYV)

    00.017.0.01.004.00.003.

        Beet yellows virus, Californian isolate

    [AF056575]

    (BYV)

    00.017.0.01.005.

    Burdock yellows virus

    00.017.0.01.005.00.001.

        Burdock yellows virus

    (BuYV)

    00.017.0.01.006.

    Carnation necrotic fleck virus

    (136)

    00.017.0.01.006.00.001.

        Carnation necrotic fleck virus

    (CNFV)

    00.017.0.01.007.

    Carrot yellow leaf virus

    00.017.0.01.007.00.001.

        Carrot yellow leaf virus

    (CYLV)

    00.017.0.01.008.

    Citrus tristeza virus

    (33; 353)

    00.017.0.01.008.00.002.

        Citrus tristeza virus, isolate vt

    [U56902]

    (CTV)

    00.017.0.01.008.00.003.

        CTV isolate T36, quick decline

    [U16304]

    (CTV)

    00.017.0.01.008.00.003.

        Citrus tristeza virus, T36

    [AY170468]

    (CTV)

    00.017.0.01.008.00.004.

        Citrus tristeza virus, T385

    [Y18420]

    (CTV)

    00.017.0.01.008.00.005.

        Citrus tristeza virus, SY568

    [AF001623]

    (CTV)

    00.017.0.01.008.00.006.

        Citrus tristeza virus, T30

    [AF260651]

    (CTV)

    00.017.0.01.008.00.007.

        CTV, seedling yellows strain

    [AB04398]

    (CTV)

    00.017.0.01.012.

    Wheat yellow leaf virus

    (157)

    00.017.0.01.012.00.001.

        Wheat yellow leaf virus

    (WYLV)

    2. Vector unkown

    00.017.0.01.009.

    Grapevine leafroll-associated virus 2

    00.017.0.01.009.00.001.

        Grapevine leafroll-associated virus 2

    [Y14131]

    (GLRAV-2)


































    Tentative Species in the Genus

    00.017.0.81.014.

    Clover yellows virus

    00.017.0.81.014.00.001.

        Clover yellows virus

    (CYV)

    00.017.0.81.016.

    Dendrobium vein necrosis virus

    00.017.0.81.016.00.001.

        Dendrobium vein necrosis virus

    (DVNV)

    00.017.0.81.018.

    Festuca necrosis virus

    00.017.0.81.018.00.001.

        Festuca necrosis virus

    (FNV)

    00.017.0.81.019.

    Heracleum virus 6

    00.017.0.81.019.00.001.

        Heracleum virus 6

    (HV-6)












    Genus

    00.017.0.03.   Ampelovirus

    Type Species

    00.017.0.03.001.     Grapevine leafroll-associated virus 3

    List of Species Demarcation Criteria in the Genus

    The criteria demarcating species in the genus are:
  • Particle size,
  • Size of CP, as determined by deduced as sequence data,
  • Serological specificity using discriminatory monoclonal or polyclonal antibodies,
  • Genome structure and organization (number and relative location of the ORFs),
  • Amino acid sequence of relevant gene products (CP, CPm, HSP70h) differing by more than 1070,
  • Vector species and specificity,
  • Magnitude and specificity of natural and experimental host range,
  • Cytopathological features (i.e., aspect of inclusion bodies and origin of cytoplasmic vesicles).

    List of Species in the Genus

    The ICTVdB virus code and the viruses. Official virus species names are in italics, CMI/AAB description # ( ). 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

    00.017.0.03.002.

    Grapevine leafroll-associated virus 1

    00.017.0.03.002.00.001.

        Grapevine leafroll-associated virus 1

    [AF195822]

    (GLRaV-1)

    00.017.0.03.003.

    Grapevine leafroll-associated virus 3

    00.017.0.03.003.00.001.

        Grapevine leafroll-associated virus 3

    [U82937]

    (GLRaV-3)

    00.017.0.03.009.

    Grapevine leafroll-associated virus 5

    00.017.0.03.009.00.001.

        Grapevine leafroll-associated virus 5

    [AF039552]

    (GLRaV-5)

    00.017.0.03.004.

    Little cherry virus 2

    00.017.0.03.004.00.002.

        Little cherry virus 2, USA6b

    [AF 531505]

    (LChV-2)

    00.017.0.03.004.00.001.

        Little cherry virus 2

    [AF333237]

    (LChV-2)

    00.017.0.03.004.00.003.

        Little cherry virus 2, LC5

    [AF416335]

    (LChV-2)

    00.017.0.03.005.

    Pineapple mealybug wilt-associated virus 1

    00.017.0.03.005.00.001.

        Pineapple mealybug wilt-associated virus 1

    [AF414119]

    (PMWaV-1)

    00.017.0.03.006.

    Pineapple mealybug wilt-associated virus 2

    00.017.0.03.006.00.001.

        Pineapple mealybug wilt-associated virus 2

    [AF283103]

    (PMWaV-2)




















    Tentative Species in the Genus

    1. Mealybug-transmitted

    00.017.0.83.011.

    Sugarcane mild mosaic virus

    00.017.0.83.011.00.001.

        Sugarcane mild mosaic virus

    (SMMV)

    2. Vector unkown

    00.017.0.83.008.

    Grapevine leafroll-associated virus 4

    00.017.0.83.008.00.001.

        Grapevine leafroll-associated virus 4

    [AF039553]

    (GLRaV-4)

    00.017.0.83.012.

    Grapevine leafroll-associated virus 6

    00.017.0.83.012.00.001.

        Grapevine leafroll-associated virus 6

    [AJ496796]

    (GLRaV-6)

    00.017.0.83.010.

    Grapevine leafroll-associated virus 8

    00.017.0.83.010.00.001.

        Grapevine leafroll-associated virus 8

    (GLRaV-8)

    00.017.0.03.007.

    Plum bark necrosis and stem pitting-associated virus

    00.017.0.03.007.00.001.

        Plum bark necrosis and stem pitting-associated virus

    [AF195501]

    (PBNSTaV)

















    Genus

    00.017.0.02.   Crinivirus

    Type Species

    00.017.0.02.001.     Lettuce infectious yellows virus

    List of Species Demarcation Criteria in the Genus

    The criteria demarcating species in the genus are:
  • Particle size,
  • Size of CP, as determined by deduced amino acid sequence data,
  • Serological specificity using discriminatory monoclonal or polyclonal antibodies,
  • Genome structure and organization (number and relative location of the ORFs),
  • Amino acid sequence of relevant gene products (CP, CPm, HSP70h) differing by more than 10%,
  • Vector species and specificity,
  • Magnitude and specificity of natural and experimental host range,
  • Cytopathological features (i.e., aspect of inclusion bodies and origin of cytoplasmic vesicles).
  • List of Species in the Genus

    The ICTVdB virus code and the viruses. Official virus species names are in italics, CMI/AAB description # ( ). 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

    00.017.0.02.002.

    Abutilon yellows virus

    00.017.0.02.002.00.001.

        Abutilon yellows virus

    (AbYV)

    00.017.0.02.010.

    Beet pseudoyellows virus

    00.017.0.02.010.00.001.

        Beet pseudoyellows virus

    [Y15568]

    (BPYV)

    00.017.0.02.010.00.001.

        Beet pseudoyellows virus

    [U67447]

    (BPYV)

    00.017.0.02.010.

        (Beet pseudo-yellows virus)

    00.017.0.02.010.

        (Cucumber yellows virus)

    00.017.0.02.010.

        (Cucumber chlorotic spot virus)

    00.017.0.02.003.

    Cucurbit yellow stunting disorder virus

    00.017.0.02.003.00.001.

        Cucurbit yellow stunting disorder virus

    RNA2:[AJ439690]

    (CYSDV)

    00.017.0.02.003.00.001.

        Cucurbit yellow stunting disorder virus

    RNA1:[AJ537493]

    (CYSDV)

    00.017.0.02.004.

    Lettuce chlorosis virus

    00.017.0.02.004.00.001.

        Lettuce chlorosis virus

    (LCV)

    00.017.0.02.005.

    Lettuce infectious yellows virus

    (369)

    00.017.0.02.005.00.001.

        Lettuce infectious yellows virus

    RNA1:[U15440]

    (LIYV)

    00.017.0.02.005.00.001.

        Lettuce infectious yellows virus

    RNA2:[U15441]

    (LIYV)

    00.017.0.02.009.

    Sweet potato chlorotic stunt virus

    00.017.0.02.009.00.001.

        Sweet potato chlorotic stunt virus

    RNA1:[AJ428554]

    (SPCSV)

    00.017.0.02.009.00.001.

        Sweet potato chlorotic stunt virus

    RNA2:[AJ428555]

    (SPCSV)

    00.017.0.02.009.00.002.

        SPCSV, Kenyan isolate

    [X80995]

    00.017.0.02.007.

    Tomato chlorosis virus

    00.017.0.02.007.00.001.

        Tomato chlorosis virus

    (ToCV)

    00.017.0.02.008.

    Tomato infectious chlorosis virus

    00.017.0.02.008.00.001.

        Tomato infectious chlorosis virus

    (TICV)
































    Tentative Species in the Genus

    00.017.0.82.011.

    Diodia vein chlorosis virus

    00.017.0.82.011.00.001.

        Diodea vein chlorosis virus

    (DVCV)

    00.017.0.82.009.

    Potato yellow vein virus

    00.017.0.82.009.00.001.

        Potato yellow vein virus

    RNA1:[AJ557128]

    (PYVV)

    00.017.0.82.009.00.001.

        Potato yellow vein virus

    RNA2:[AJ557129]

    (PYVV)

    00.017.0.82.009.00.001.

        Potato yellow vein virus

    RNA3:[AJ508757]

    (PYVV)










    List of Unassigned Viruses in the Family

    The species that follow could not be allocated to any of the genera either because the available information is scanty (Megakepasma mosaic virus; MegMV and Alligatorweed stunting virus; AWSV), or because more molecular (Olive leaf yellowing-associated virus; OLYaV and Grapevine leafroll-associated virus 7; GLRaV-7) or biological data (Little cherry virus 1; LChV-1) are needed for unequivocal classification.

    The ICTVdB virus code and the viruses. Unclassfied 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

    00.017.0.00.013.

    Alligatorweed stunting virus

    00.017.0.00.013.00.001.

        Alligatorweed stunting virus

    (AWSV)

    00.017.0.00.011.

    Little cherry virus 1

    00.017.0.00.011.00.001.

        Little cherry virus 1

    [Y10237]

    (LChV-1)

    00.017.0.00.011.00.001.

        Little cherry virus 1

    [NC_001836]

    (LChV-1)

    00.017.0.00.023.

    Grapevine leafroll-associated virus 7

    00.017.0.00.023.00.001.

        Grapevine leafroll-associated virus 7

    [Y15897]

    (GLRaV-7)

    00.017.0.00.025.

    Megakepasma mosaic virus

    00.017.0.00.025.00.001.

        Megakepasma mosaic virus

    (MegMV)

    00.017.0.00.030.

    Olive leaf yellowing-associated virus

    00.017.0.00.030.00.001.

        Olive leaf yellowing-associated virus

    [AJ440010]

    (OLYaV)

     

    00.017.0.71.006.

    Muskmelon yellows virus

    00.017.0.71.029.

    Grapevine corky bark-associated virus



















    Similarity with other Taxa

    Virions of the genera Capillovirus, Trichovirus, and Vitivirus have the same particle morphology as those of the family Closteroviridae. However, the sequence of the CP of members of this family has little homology with that of CPs of viruses in the three above genera, and major differences exist in genome size and organization, and strategy of expression. Replication-associated proteins (RdRp, Mtr and Hel) contain signature sequences homologous to those of other taxa of the "alpha-like" supergroup of ssRNA viruses, the closest affinity being with the family Bromoviridae and the genera Tobravirus, Tobamovirus, and Hordeivirus. The replication strategy, based on polyprotein processing, translational frameshifting, and multiple sgRNA generation, closely resembles that of viruses in the families Coronaviridae and Arteriviridae. However, unlike closteroviruses, the RdRp of coronaviruses and arteriviruses belong to the "picorna-like" supergroup of polymerases. Hence, the transcriptional strategy of members of the family Closteroviridae follows the mechanism of other "alpha-like" viruses, and is dissimilar from the discontinuous, leader-primed transcription of coronaviruses and arteriviruses.

    Derivation of Names

    ampelo: from ampelos, Greek for grapevine, the host of the type species of the genus;
    clostero: from Greek kloster, 'spindle, thread';
    crini: from crinis, Latin for hair, from the appearance of the very long thread-like particles.

    References

    Collated from VIIIth ICTV Report

    Contributed by

    Martelli, G.P., Agranovsky, A.A., Bar-Joseph, M., Boscia, D., Candresse, T., Coutts, R.H.A., Dolja, V.V., Falk, B.W., Gonsalves, D., Hu, J.S., Jelkmann, W., Karasev, A.V., Minafra, A., Namba, S., Vetten, H.J., Wisler, C.G. and Yoshikawa, N.


    Cite this publication as: Index of Viruses - Closteroviridae (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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