Potyviridae

Genus: Macluravirus


Genus: Macluravirus

Distinguishing features

Macluraviruses resemble members of the genus Potyvirus in their transmission by aphids but virions are slightly shorter. They form a distinct group in phylogenetic analyses and have different polyprotein consensus cleavage sites.

Virion

Morphology

Virions are flexuous filaments mostly 650–675 nm×13–16 nm.

Physicochemical and physical properties

Virion Sedimentation coefficient S20,w is 155–158S; density in CsCl is 1.31–1.33 g cm−3.

Nucleic acid

Virions contain one molecule of linear positive sense, ssRNA. RNA is about 8.0 kb.

Proteins

Macluraviruses have a single CP species of 33–34 kDa.

Genome organization and replication

The complete genome sequences of four different macluraviruses are available. The aa sequences of macluravirus CPs show limited (14–23%) identity with CP sequences of some aphid-transmitted potyviruses. Macluraviruses show significant aa sequence identity in portions of the replicase protein with viruses in other genera of the family Potyviridae. The macluraviruses seem to have a genome organization and replication strategy typical of viruses in the family Potyviridae (Figure 2.Potyviridae). 

Antigenicity

Moderately immunogenic. No serological relationships to members of the genus Potyvirus have been found except for a weak reaction between maclura mosaic virus and bean yellow mosaic virus.

Biology

Host range

Current information suggests that most viruses have a narrow host range, infecting species in up to nine host families.

Transmission

The viruses are transmitted by aphids in a non-persistent manner and experimentally by mechanical inoculation.

Derivation of names

Maclura: the genus name of the host of the type species.

Member Species

SpeciesVirus name(s)Exemplar isolateExemplar accession numberExemplar RefSeq numberAvailable sequenceOther isolatesOther isolate accession numbersVirus Abbreviation(s)
Alpinia mosaic virusAlpinia mosaic virusTaiwanAF499025Partial genomeAlpMV-TW
Artichoke latent virusartichoke latent virusFR37KP405232NC_026759Complete genomeArLV-FR37
Artichoke latent virusRanunculus latent virusRN128DQ152193RanLV-RN128
Broad-leafed dock virus Abroad-leafed dock virus Aab032:AucklandKU053507Complete genomeBDVA-ab032
Cardamom mosaic viruscardamom mosaic virusIndia:YelsurAF189125Partial genomeCdMV-YE
Chinese yam necrotic mosaic virusChinese yam necrotic mosaic virusPES3 AB710145NC_018455Complete genomeCYNMV-PES3
Maclura mosaic virusMaclura mosaic virusUKU58771Partial genomeMacMV-UK
Narcissus latent virusNarcissus latent virusNew ZealandDQ450199Partial genomeNLV-NZ
Yam chlorotic mosaic virusYam chlorotic mosaic virusYSKT724961Complete genomeYCMV-YS

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.
Download GenBank/EMBL query for sequences listed in the table here.

Related, Unclassified Viruses

Virus name

Accession number

Virus abbreviation

Large cardamom chirke virus

JN257715*

 LCCV

* incomplete genome sequence
Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.
Download GenBank/EMBL query for sequences listed in the table here.
  • Created by
  • When: Feb 23, 2017 3:43 PM
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  • When: Jan 30, 2018 5:56 PM
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