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.



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 of about 8.0 kb.


Macluraviruses have a single coat (capsid) protein (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). 


Host range

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


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


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.

Derivation of names

Macluravirus: from the genus name of the host (Maclura) of members of the type species Maclura mosaic virus.

Species demarcation criteria

See discussion under family description.

Member species

Exemplar isolate of the species
SpeciesVirus nameIsolateAccession numberRefSeq numberAvailable sequenceVirus Abbrev.
Alpinia mosaic virusAlpinia mosaic virusTWAF499025NC_043132Partial genomeAlpMV
Alpinia oxyphylla mosaic virusAlpinia oxyphylla mosaic virusAlpoMG978107Complete genomeAloMV
Artichoke latent virusartichoke latent virusFR37KP405232NC_026759Complete genomeArLV
Artichoke latent virusRanunculus latent virusRN128DQ152193Partial genomeRanLV
Broad-leafed dock virus Abroad-leafed dock virus Aab032 AucklandKU053507NC_038560Complete genomeBDVA
Cardamom mosaic viruscardamom mosaic virusKSMF622947NC_039088Complete genomeCdMV
Chinese yam necrotic mosaic virusChinese yam necrotic mosaic virusPES3AB710145NC_018455Complete genomeCYNMV
Maclura mosaic virusMaclura mosaic virusUKU58771NC_043133Partial genomeMacMV
Narcissus latent virusNarcissus latent virusNZDQ450199NC_043134Partial genomeNLV
Yam chlorotic mosaic virusyam chlorotic mosaic virusYSKT724961NC_038561Complete genomeYCMV
Yam chlorotic necrosis virusyam chlorotic necrosis virusY-JishMG755240Complete genomeYCNV

Virus names, the choice of exemplar isolates, and virus abbreviations, are not official ICTV designations.

Related, unclassified viruses

Virus name

Accession number

Virus abbreviation

Large cardamom chirke virus



Virus names and virus abbreviations are not official ICTV designations.
* incomplete genome sequence