SINV-1-like Viruses
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. Acute bee paralysis virus. Fig. 1 Transmission electron micrograph. Length of bar (nm): 100 nm(Modified from Bailey et al. (1963) Virology 21:390–395, with permission)
Virion Morphology:
Icosahedral
Envelope:
No
Diameter (nm):
30
Length (nm): Structural components:
Capsid
Buoyant density (g/mL):
1.34–1.37
Buoyant density method:
CsCl
Lipid composition:
None reported
Additional information:
C. Tidona, G. Darai (eds.), The Springer Index of Viruses, DOI 10.1007/978-0-387-95919-1, # Springer Science+Business Media, LLC 2011
446
SINV-1-like Viruses
Genome Nucleic acid:
RNA
Strandedness:
Single-strande
Polarity:
Positive-sense
Configuration:
Linear
Segment organization: Segment no. 1 (kb): One segment(s): G + C content (%):
9.3–10.3 9.3–10.3 (kb) total (calculated)
35–45
mRNA transcripts: Open reading frames:
2
Additional information: A small protein, VPg, is suggested to be linked covalently to the 50 terminus of the viral RNA. The 30 end is polyadenylated. Initiation of translation of the second open reading frame is mediated by internal ribosome entry site (IRES)
. Transmission pathways of viruses in honey bees. Fig. 2 Replication of viruses occurs in the cytoplasm of infected cells, but detail of life cycle has not been revealed. Horizontal and vertical transmission pathways are believed to be important for persistence of viruses in bee population. Solid lines represent horizontal transmission and dotted lines represent vertical transmission (Modified from a review of ChenYP and Siede R (Adv Virus Res 70:33–80), with permission)
SINV-1-like Viruses
Replication Entry mechanism:
Unknown
Site of transcription: Transcriptase: Site of genome replication:
Cytoplasm
Replicase:
Virus-encoded RNA-dependent RNA polymerase
Replication intermediate: Site of virion assembly:
Cytoplasm
Egress mechanism:
Unknown
Additional information:
History Year of event Event
References
1963
First description of acute bee paralysis virus
Bailey et al (1963) Virology 21:390–395
1992
First description of Taura syndrome disease.
Jimenez R (1992) Syndrome de taura (resumen) Aqua Ecuador 1:1–16
1977
First description of Kashmir bee virus
Bailey et al (1977) J Gen Virol 37:175–182
2004
Discovery of Solenopsis invicta virus-1
Valles et al (2004) Virology 328:151–157
2004
Experimental evidence of the presence of another type of IGR- Hatakeyama et al (2004) RNA 10:779–786 IRES in these viruses
2007
Isolation and characterization of Israeli acute paralysis virus
2010
Honey bee colony collapse disorder (CCD) would be caused by Ratnieks FL, Carreck NL (2008) Science many agents in combination, though the correlation between 327:152–153 the CCD and IAPV was suspected.
2010
These viruses have been scheduled to create the new genus Aparavirus in the family Dicistroviridae
Maori et al (2007) J Gen Virol 88:3428–3438
Genus Members
Species name
Wild-type strains/ Natural host Synonyms isolates range
Experimental host range
Membership status
Solenopsis invicta virus-1 (SINV-1)
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