Descriptions are
generated automatically from the ICTVdB database including links. Some
descriptions are only very basic and links may point to documents that are not
yet published on the Web.
00.034.0.01. Idaeovirus
Cite this publication as: ICTVdB Management (2006).
00.034.0.01. Idaeovirus. In: ICTVdB - The Universal Virus Database,
version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA
Cite this site as: ICTVdB - The Universal Virus Database, version 4.
http://www.ncbi.nlm.nih.gov/ICTVdb/ICTVdB/
This is a description of a
plant virus at the genus level (not yet assigned to
a family).
ICTVdB Virus Code: 00.034.0.01. Virus accession number:
034001GE. Obsolete virus code: 34.0.1.; superceded accession number: 34010000.
NCBI Taxon Identifier NCBI Taxonomy ID:
39760.
Name, Synonyms and Lineage
Synonym(s): Raspberry
bushy dwarf virus group. Virus is not assigned to a family.
Virions consist of a capsid. Virus capsid is not
enveloped, round with icosahedral
symmetry. The isometric capsid has a diameter of
33 nm. Capsids appear hexagonal in outline. The capsomer arrangement is not
obvious. Virus preparations contain more than one particle component.
Virions have a buoyant density in CsCl of 1.37 g
cm-3. There are 1 sedimenting component(s) found in purified
preparations, or 3 sedimenting component(s) found in purified preparations. The
sedimentation coefficient is 115 S20w. The thermal
inactivation point (TIP) is at 65°C. The longevity in vitro (LIV) is
4 days. Although the titer is dependent on the host, the decimal exponent (DEX)
of the dilution end point is usually around 4.
The Mr
of the genome constitutes 24% of the virion by weight. The genome is segmented;
bipartite, segements are distributed among 2 particle types, or multipartite and
segments are distributed over several particles of varying size, depending on
the length of the genome enclosed. The genome consists of three segments of
linear, positive-sense, single-stranded RNA.
Minor species of non-genomic nucleic acid are also found in virions. The
encapsidated nucleic acid is mainly of genomic origin, but virions may also
contain subgenomic RNA, that is mRNA derived
from genomic RNA-2. The complete genome is 8600 nucleotides long, is
sequenced, complete sequence is about 5400
nucleotides long (RNA-1). RNA-2 is fully sequenced.
Complete sequence is 2200 nucleotides long. is sequenced and complete
sequence is about 1000 nucleotides long
(RNA-3). The multipartite genome is divided among more than one type of
particle.
GenBank records for
nucleotide sequences;
complete genome sequences.
Proteins
constitute about 76% of the particle weight.
The viral genome encodes structural proteins. Virions consist of 1 structural
protein(s).
Lipids are not
reported.
Transcription: Sub-genomic RNA is
present in infected cells; encoding the coat protein.
Natural Host
Domain
Viral hosts belong to the Domain
Eucarya.
Domain Eucarya
Kingdom Plantae.
Kingdom Plantae
Phylum Magnoliophyta
(Angiosperms, Class Magnoliopsida (Dicotyledonae).
Class Magnoliopsida (Dicotyledonae)
Subclass
ROSIDAE.
Severity and Occurrence of
Disease
Host: Infection is not apparent.
Virus is not transmitted by a vector. Virus is
transmitted by mechanical inoculation; transmitted by grafting; transmitted by
seeds; transmitted by pollen to the seed, or transmitted by pollen to the
pollinated plant.
Experimental Hosts and Symptoms
Under
experimental conditions susceptibility to infection by virus is found in many
families. Susceptible host species are found in the Family
Chenopodiaceae, Leguminosae-Papilionoideae, Rosaceae,
Solanaceae. The following species were susceptible to experimental
virus infection: Chenopodium amaranticolor, Chenopodium murale,
Chenopodium quinoa, Fragaria vesca, Nicotiana
clevelandii, Phaseolus vulgaris, Rubus idaeus,
Rubus loganobaccus, Rubus occidentalis, Rubus
ursinus.
The virus is probably distributed worldwide. The virus
spreads in Eurasia, or North America. The virus occurs in Australia, or New
Zealand (Aotearoa), or the USSR (former).
Type species 00.034.0.01.001.
Raspberry bushy dwarf virus .
List of Species in the
Genus.
Data Sources and
Contributions
The
following generic references are cited in the most recent ICTV Report.
PubMed References.
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