Genus
Reverse Transcribing DNA and RNA Viruses

Genus: Rosadnavirus

Family: Caulimoviridae

Genus: Rosadnavirus

 

Distinguishing features 

Rose yellow vein virus (RYVV), a member of the only species in the genus, is distinguishable from all other members of the Caulimoviridae by its unique genome organization, in having overlapping ORFs 1, 2 and 3, a very large genome and in its phylogenetic placement based upon analysis of polymerase gene sequences.

Virion

Morphology

Virions of RYVV are icosahedral, 42–45 nm in diameter. 

Genus
Reverse Transcribing DNA and RNA Viruses

Genus: Petuvirus

Family: Caulimoviridae

Genus: Petuvirus

 

Distinguishing features

Petunia vein clearing virus (PVCV), a member of the sole species in the genus, Petunia vein clearing virus, is distinguishable from all other members of the Caulimoviridae except for vacciniviruses by its simple genome organization (one ORF) and phylogenetic placement based upon analysis of polymerase gene sequences.

Genus
Reverse Transcribing DNA and RNA Viruses

Genus: Dioscovirus

Family: Caulimoviridae

Genus: Dioscovirus

 

Distinguishing features

Dioscorea nummularia-associated virus (DNUaV) is a member of the only species in the genus. Its genome encodes four ORFs with ORF3 and ORF4 separated by an intergenic region, and ORF4 encoding a translation transactivator domain.

Virion

Virions are unknown. 

Nucleic acid

The genome of Dioscorea nummularia-associated virus comprises 8139 bp with four ORFs.

Genus
Reverse Transcribing DNA and RNA Viruses

Genus: Cavemovirus

Family: Caulimoviridae

Genus: Cavemovirus

 

Distinguishing features

The members of this genus produce virions and cytoplasmic inclusions similar to those of viruses in the genera Caulimovirus, Petuvirus and Soymovirus but differ from them in genome organization and phylogenetic placement based on analysis of polymerase gene sequences. The order of the movement protein and coat protein is also reversed to that of all other genera in the Caulimoviridae.

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