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00.010.0.02.009. Fragaria chiloensis latent virus

Cite this publication as: ICTVdB Management (2006). 00.010.0.02.009. Fragaria chiloensis latent virus. 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/

Table of Contents

Isolate Description

Location: the USDA National Germplasm Repository, Corvallis, Oregon in strawberry plants collected in Chile; Chile.

Host of Isolate and Habitat Details
Source of isolate: Fragaria chiloensis.

Natural host and symptoms
Fragaria chiloensis and Fragaria sp. — symptomless.

Reference to Isolation Report
Spiegel et al. (1993).

Classification

This is a description of a plant virus at the species level with data on all virus properties from morphology to genome, replication, antigenicity and biological properties.

ICTVdB Virus Code: 00.010.0.02.009. Virus accession number: 10002009. Obsolete virus code: 10.0.2.T.DE.3; superceded accession number: 1002tde3.
NCBI Taxon Identifier NCBI Taxonomy ID: 255238.

Name, Synonyms and Lineage

The taxon has the accepted ICTV name.

Synonym(s): Fragaria chiloensis virus. ICTV approved acronym: FCILV. Virus is an ICTV approved species of the genus 00.010.0.02. Ilarvirus in the family 00.010. Bromoviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped. Capsid is round to elongated with icosahedral symmetry. The capsid is isometric and has a diameter of 21.4 nm (18.0 - 24.3 nm). Virus preparations contain more than one particle component. The capsid has a length of 54.5 nm (maximum).
























Electron micrograph of Bromoviridae.

Nucleic Acid

The genome is segmented; tripartite, segements are distribute among 3 particle types of different size; consists of four 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, is sequenced, but only an estimate is available, complete sequence is 3700 nucleotides long. RNA-2 is sequenced, but only an estimate is available, complete sequence is 2650 nucleotides long. RNA-3 is sequenced, but only an estimate is given, complete sequence is 2600 nucleotides long. RNA-4 is the encapsidated mRNA has been fully sequenced, complete sequence is 1200 nucleotides long. The multipartite genome is divided among more than one type of particle and the segments are distributed between 3 different types of particles. The largest particles contain each one molecule of RNA-1 (sedimenting component B). The medium sized particles contain each one molecule of RNA-2 (sedimenting component M). The smallest particles contain one molecule each of RNA-3 and RNA-4 (sedimenting component T).

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins and non-structural proteins. Virions consist of 1 structural protein(s) located in the capsid.

Structural Proteins: Capsid protein coat. Capsid protein has a molecular mass of 28000 Da; is involved in viral encapsidation and involved in protein movement.

Lipids

Lipids are absent.

Transcription: Sub-genomic RNA is present in infected cells.

Antigenicity

The virus is serologically related to Asparagus virus 3, lilac ring mottle. The virus does not show serological relationships to apple mosaic, blueberry shock, citrus leaf rugose, elm mosaic, elm mottle, prune dwarf, Prunus necrotic ringspot, spinach latent, tobacco stunt, Tulare apple mosaic.

Diagnostics and Reference Collections

The best tests for diagnosis are ELISA.

Biological Properties

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; Order Rosales.

Transmission and Vector Relationships

Virus is not transmitted by a vector. Virus is transmitted by mechanical inoculation; transmitted by grafting; not transmitted by contact between hosts; transmitted by seeds (30-50% in Fragaria chiloensis).

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in few families. Susceptible host species are found in the Family Chenopodiaceae, Cucurbitaceae, Rosaceae. The following species were susceptible to experimental virus infection: Chenopodium amaranticolor, Chenopodium quinoa, Cucumis sativus, Fragaria chiloensis.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Amaranthaceae, Leguminosae-Papilionoideae, or Solanaceae. Species inoculated with virus that do not show signs of susceptibility: Datura stramonium, Gomphrena globosa, Gomphrena stramonium, Nicotiana, Nicotiana benthamiana, Nicotiana clevelandii, Nicotiana glutinosa, Nicotiana rustica, Nicotiana sylvestris, Nicotiana tabacum, Petunia x hybrida, Phaseolus vulgaris.

Diagnostic Hosts

Diagnostic host species and symptoms:

Chenopodium amaranticolor, C. quinoa, Cucumis sativus — systemic mottle, chlorotic patches and stunting. Diagnostic host: insusceptible host species Datura stramonium, Gomphrena stramonium, Nicotiana (several species) and Phaseolus vulgaris.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Fragaria ssp.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Chenopodium quinoa (W).

References to host data: Spiegel et al., 1993.

Geographical Distribution

The virus occurs in Chile.

References

Spiegel, S., Martin, R.R., Leggett, F., ter Borg, M. and Postman, J. (1993). Phytopathology 83: 991.

The following generic references are cited in the most recent ICTV Report.

PubMed References. A description of this taxon in VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 344 by J.D. Postman, 1994.

Taxonomic Proposals and Changes

The proposal to include a new taxon has been approved at the meeting of the Executive Committee in San Diego, 1998, the taxon has been designated as Species (in the Genus Ilarvirus).



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DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia. ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses by Dr Cornelia Büchen-Osmond is written in DELTA. The virus descriptions in ICTVdB are coded by, or using data from experts in the field of virology or members ICTV. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations are automatically generated and formatted for display on the Web from the descriptions in DELTA-format. The description has been generated automatically from DELTA files. DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia.

ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses (ICTV) by Dr Cornelia Büchen-Osmond, is written in DELTA. The virus descriptions in ICTVdB are coded by ICTV members and experts, or by the ICTVdB Management using data provided by the experts, the literature or the latest ICTV Report. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations from the encoded descriptions are automatically generated and formatted for display on the Web.

Developer of the DELTA software: M. J. Dallwitz, T. Paine and E. Zurcher

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Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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