Members of the genus Rhizomonavirus are distinct from those of other genera by phylogenetic analysis of the RdRP gene (Figure 5.Mymonaviridae) with <32% amino acid sequence identity for the L protein. The genome is a single molecule of linear, negative-sense RNA of about 9.2 kb with six ORFs separated by non-coding intergenic regions containing highly conserved gene-junction sequences. Currently known genome sequences are incomplete. Virions, antigenicity, and biology have not been reported. The virus belonging to the only species in the genus was detected by high-throughput sequencing in the root tissue of plant exhibiting decline symptom.
Species demarcation criteria
There is only one species in the genus. Members of additional species in the genus would be expected to differ by >30% in nucleoprotein amino acid sequence and by >30% in their coding-complete or complete genome nucleotide sequence.