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| Family/genus | Type | Min length | Max length |
| Ourmiavirus | Linear (3 segments) | ? | ? |
| Narnaviridae | Linear | 2.3 kb | 2.9 kb |
| Barnaviridae | Linear | 4 kb | 4 kb |
| Umbravirus | Linear | 4 kb | 4.2 kb |
| Leviviridae | Linear | 3.4 kb | 4.3 kb |
| Sobemovirus | Linear | 4 kb | 4.5 kb |
| Alvernaviridae | Linear | 4.5 kb | 4.5 kb |
| Nodaviridae | Linear (2 segments) | 4.5 kb | 4.5 kb |
| Tombusviridae | Linear | 3.7 kb | 4.8 kb |
| Luteoviridae | Linear | 5.6 kb | 5.9 kb |
| Permutotetraviridae | Linear | 5.6 kb | 5.6 kb |
| Carmotetraviridae | Linear | 6.1 kb | 6.1 kb |
| Gammaflexiviridae | Linear | 6.8 kb | 6.8 kb |
| Hepeviridae | Linear | 7.2 kb | 7.2 kb |
| Astroviridae | Linear | 6.4 kb | 7.4 kb |
| Tymoviridae | Linear | 6 kb | 7.5 kb |
| Alphatetraviridae | Linear (1-2 segments) | 6.5 kb | 7.8 kb |
| Bromoviridae | Linear (3 segments) | 8 kb | 8 kb |
| Caliciviridae | Linear | 7.4 kb | 8.3 kb |
| Marnaviridae | Linear | 8.6 kb | 8.6 kb |
| Idaeovirus | Linear (3 segments) | 8.7 kb | 8.7 kb |
| Alphaflexiviridae | Linear | 5.4 kb | 8.8 kb |
| Picornaviridae | Linear | 6.7 kb | 9.07 kb |
| Betaflexiviridae | Linear | 6.5 kb | 9 kb |
| Iflaviridae | Linear | 8.8 kb | 9.7 kb |
| Matonaviridae | Linear | 9.7 kb | 9.7 kb |
| Dicistroviridae | Linear | 9 kb | 10 kb |
| Hordeivirus | Linear (3 segments) | 9.8 kb | 10.7 kb |
| Potyviridae | Linear (1-2 segments) | 9.3 kb | 10.8 kb |
| Virgaviridae | Linear (2-3 segments) | 6.3 kb | 12 kb |
| Flaviviridae | Linear | 9.6 kb | 12.3 kb |
| Togaviridae | Linear | 11.2 kb | 12.5 kb |
| Secoviridae | Linear (2 segments) | 9 kb | 15.7 kb |
| Arteriviridae | Linear | 12.7 kb | 15.7 kb |
| Benyviridae | Linear (4-5 segments) | 15.8 kb | 15.8 kb |
| Closteroviridae | Linear (1-2 segments) | 15.5 kb | 19.3 kb |
| Mesoniviridae | Linear | 19.9 kb | 20.2 kb |
| Roniviridae | Linear | 26.2 kb | 26.2 kb |
| Coronaviridae | Linear | 27.6 kb | 31 kb |