Family: Mayoviridae (interim)
This is a summary page created by the ICTV Report Editors using information from associated Taxonomic Proposals and the Master Species List.
Edited by: Luisa Rubino
Posted: October 2024
Summary
The family Mayoviridae includes ssRNA(+) viruses of plants (Table 1 Mayoviridae). The genomes are bisegmented. The family Mayoviridae was established in 2020 (Master Species List #35).
Table 1 Mayoviridae. Characteristics of members of the family Mayoviridae.
| Characteristic | Description |
| Example | privet leaf blotch-associated virus (RNA1: LT221868; RNA2: LT221869), species Idaeovirus ligustri, genus Idaeovirus |
| Virion | Non-enveloped, icosahedral |
| Genome | ssRNA(+), bi-segmented not polyadenylated |
| Replication | Cytoplasmic, dsRNA intermediate, genome and subgenome-sized mRNAs |
| Translation | Canonical |
| Host range | Plants, transmitted by pollen |
| Taxonomy | Realm Riboviria, kingdom Orthornavirae, phylum Kitrinoviricota, class Alsuviricetes, order Martellivirales: 2 genera and 4 species |
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| Figure 1 Mayoviridae. Genome organisation of privet leaf blotch-associated virus, a member of the family Mayoviridae. Boxes indicate open reading frames as annotated on GenBank accessions LT221868 and LT221869. MTR, methyltransferase domain; HEL, helicase domain; RdRP, RNA-directed RNA polymerase domain. |
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| Figure 2 Mayoviridae. Relationships of the taxa connected to the family Mayoviridae. |
Derivation of names
Idaeovirus: from the host plant of raspberry bushy dwarf virus, Rubus idaeus, the vowel o; the suffix -virus for genus taxa
Mayoviridae: to honour the British plant virologist Michael A Mayo, past Life Member of the ICTV; the suffix -viridae for family taxa
Pteridovirus: from Ancient Greek πτέρις (pteris), meaning “fern”, referring to the host plant of Japanese holly fern mottle virus. Cyrtomium falcatum