IREScentralTaxonomy
127,650 IRES candidate sequences: 54,030 assigned to an IRESG family, 73,620 orphan (unassigned) — taxonomy labels come from the source genome annotations.
Virus families (top 20)
assigned to an IRESG family orphan (unassigned)
IRES type composition (assigned sequences)
Virus host species (top 20)
Host annotations exist for 27,746 sequences (21.7%) — currently only NCBI-sourced genomes carry species-level host records; metagenomic sources (IMG/VR, Lucaprot, Tara Oceans) have none and are counted as "unknown".
assigned to an IRESG family orphan (unassigned)
Family → genus hierarchy
Virus taxonomy tree (classification hierarchy, not a phylogenetic tree). Click a family to expand its genera.
unknown — 42,448 sequences, 2 genera
- unknown (42,425)
- Posavirus (23)
Marnaviridae — 22,911 sequences, 23 genera
- unknown (19,550)
- Salisharnavirus (1,101)
- Sogarnavirus (989)
- Locarnavirus (792)
- Kusarnavirus (371)
- Bacillarnavirus (36)
- Barns_Ness_breadcrumb_sponge_aquatic_picorna-like_virus_2 (21)
- Marnavirus (21)
- Marnaviridae_sp (5)
- Labyrnavirus (4)
- Ginkgo_biloba_picorna-like_virus (4)
- Britarnavirus_4 (2)
- Forsythia_suspensa_marnavirus (2)
- Picornavirales_sp (2)
- Barns_Ness_breadcrumb_sponge_aquatic_picorna-like_virus_5 (2)
- Barns_Ness_breadcrumb_sponge_aquatic_picorna-like_virus_1 (2)
- Chaetarnavirus_2 (1)
- Zehneria_japonica_marnavirus (1)
- Delisea_pulchra_RNA_virus (1)
- Antarctic_picorna-like_virus_2 (1)
- Antarctic_picorna-like_virus_4 (1)
- Bat_dicibavirus (1)
- Picorna-like_virus_AWando15 (1)
Picornaviridae — 18,927 sequences, 79 genera
- Enterovirus (12,926)
- Aphthovirus (1,699)
- unknown (969)
- Senecavirus (554)
- Hepatovirus (507)
- Parechovirus (438)
- Kobuvirus (339)
- Sapelovirus (257)
- Teschovirus (196)
- Cardiovirus (190)
- Avihepatovirus (161)
- Megrivirus (91)
- Hunnivirus (67)
- Rosavirus (57)
- Sicinivirus (52)
- Cosavirus (38)
- Dicipivirus (37)
- Salivirus (31)
- Anativirus (31)
- Bopivirus (30)
- Mischivirus (24)
- Shanbavirus (19)
- Pasivirus (19)
- Mosavirus (12)
- Ailurivirus (12)
- Rabovirus (11)
- Mupivirus (10)
- Tremovirus (10)
- Boosepivirus (9)
- Crohivirus (8)
- Parabovirus (7)
- Erbovirus (7)
- Tottorivirus (6)
- Avisivirus (6)
- Fipivirus (6)
- Rhinovirus_C (5)
- Limnipivirus (5)
- Poecivirus (5)
- Oscivirus (4)
- Kunsagivirus (4)
- Sakobuvirus (4)
- Grusopivirus (4)
- Potamipivirus (4)
- Ampivirus (4)
- Picornavirales_sp (3)
- Passerivirus (3)
- Felipivirus (3)
- Aalivirus (3)
- Rhinovirus_B (2)
- Rhinovirus_A (2)
- Malagasivirus (2)
- Aquamavirus (2)
- Ludopivirus (2)
- Tropivirus (2)
- Rafivirus (2)
- Gallivirus (2)
- Pemapivirus (2)
- Enterovirus_C (1)
- Pygoscepivirus (1)
- Marsupivirus (1)
- Cardiovirus_B (1)
- Mischivirus_D (1)
- Rabovirus_A (1)
- Diresapivirus (1)
- Symapivirus (1)
- Livupivirus (1)
- Caecilivirus (1)
- Danipivirus (1)
- Orivirus (1)
- Hemipivirus (1)
- Rajidapivirus (1)
- Aichivirus_C (1)
- Bopivirus_A (1)
- Aichivirus_D (1)
- Wuhan_sharpbelly_picornavirus_2 (1)
- Wenling_triplecross_lizardfish_picornavirus (1)
- Guangdong_chinese_water_snake_picornavirus (1)
- Wenling_crossorhombus_picornavirus (1)
- Apodemus_agrarius_picornavirus (1)
Mitoviridae — 15,386 sequences, 21 genera
- unknown (11,050)
- Duamitovirus (3,161)
- Unuamitovirus (578)
- Mitovirus (521)
- Triamitovirus (43)
- Mitovirus_sp (17)
- Kvaramitovirus (2)
- Plasmopara_viticola_lesion_associated_mitovirus_18 (1)
- Sclerotinia_sclerotiorum_mitovirus_15 (1)
- Sclerotinia_sclerotiorum_mitovirus_7 (1)
- Sclerotinia_sclerotiorum_mitovirus_19 (1)
- Erysiphe_necator_mitovirus_2 (1)
- Sclerotinia_sclerotiorum_mitovirus_9-A (1)
- Sclerotinia_sclerotiorum_mitovirus_28 (1)
- Puccinia_striiformis_mitovirus_1 (1)
- Entomophthora_muscae_mitovirus_5 (1)
- Plasmopara_viticola_lesion_associated_mitovirus_1 (1)
- Plasmopara_viticola_lesion_associated_mitovirus_55 (1)
- Plasmopara_viticola_lesion_associated_mitovirus_56 (1)
- Soybean_leaf-associated_mitovirus_2 (1)
- Rhizoctonia_solani_mitovirus_34 (1)
Dicistroviridae — 7,214 sequences, 17 genera
- unknown (6,162)
- Aparavirus (369)
- Triatovirus (330)
- Cripavirus (327)
- Picornavirales_sp (5)
- Soybean_thrips_picorna-like_virus_4 (3)
- Robinvale_bee_virus_3 (3)
- Antarctic_picorna-like_virus (3)
- Violaceae-associated_triatovirus_1 (2)
- Vespula_vulgaris_Picorna-like_virus_1 (2)
- Dicistroviridae_sp (2)
- Triatoma_virus (1)
- Bivalve_RNA_virus_G2 (1)
- Lactuca_sativa_dicistroviridae (1)
- Barns_Ness_breadcrumb_sponge_dicistro-like_virus_1 (1)
- Sedum_sarmentosum_dicistroviridae (1)
- Israeli_acute_paralysis_virus (1)
Flaviviridae — 4,628 sequences, 7 genera
- Hepacivirus (2,730)
- Pestivirus (1,228)
- Pegivirus (555)
- unknown (96)
- Orthoflavivirus (14)
- Hepacivirus_C (3)
- Pegivirus_A (2)
Tombusviridae — 3,580 sequences, 10 genera
- unknown (3,416)
- Tombusvirus (70)
- Umbravirus (66)
- Luteovirus (10)
- Panicovirus (8)
- Machlomovirus (4)
- Erysiphe_necator_associated_umbra-like_virus_4 (3)
- Kummerowia_striata_tombusvirus (1)
- Carrot_mottle_mimic_virus (1)
- Alphanecrovirus (1)
Coronaviridae — 2,488 sequences, 6 genera
- Alphacoronavirus (1,053)
- Gammacoronavirus (719)
- unknown (276)
- Betacoronavirus (224)
- Deltacoronavirus (215)
- Severe_acute_respiratory_syndrome-related_coronavirus (1)
Botourmiaviridae — 1,926 sequences, 14 genera
- unknown (1,303)
- Penoulivirus (268)
- Ourmiavirus (203)
- Magoulivirus (104)
- Scleroulivirus (22)
- Betascleroulivirus (7)
- Botoulivirus (5)
- Betarhizoulivirus (5)
- Rhizoulivirus (3)
- Betabotoulivirus (2)
- Epsilonscleroulivirus (1)
- Soybean_scleroulivirus_1 (1)
- Plasmopara_viticola_lesion_associated_ourmia-like_virus_38 (1)
- Plasmopara_viticola_lesion_associated_ourmia-like_virus_84 (1)
Iflaviridae — 1,000 sequences, 3 genera
- Iflavirus (679)
- unknown (319)
- Picornavirales_sp (2)
Closteroviridae — 563 sequences, 5 genera
- Ampelovirus (295)
- Crinivirus (230)
- unknown (17)
- Olivavirus (14)
- Closterovirus (7)
Secoviridae — 442 sequences, 10 genera
- Nepovirus (92)
- Comovirus (77)
- unknown (72)
- Waikavirus (63)
- Torradovirus (44)
- Sadwavirus (40)
- Stralarivirus (32)
- Fabavirus (14)
- Cheravirus (6)
- Sequivirus (2)
Orthototiviridae — 426 sequences, 2 genera
- unknown (338)
- Totivirus (88)
Partitiviridae — 417 sequences, 7 genera
- unknown (332)
- Gammapartitivirus (35)
- Cryspovirus (16)
- Alphapartitivirus (11)
- Deltapartitivirus (10)
- Betapartitivirus (9)
- genPartiti.0029 (4)
Polycipiviridae — 374 sequences, 7 genera
- unknown (322)
- Sopolycivirus (34)
- Chipolycivirus (10)
- Nelson_Picorna-like_virus_8 (3)
- Hupolycivirus (2)
- Polycipiviridae_sp (2)
- Yongsan_picorna-like_virus_3 (1)
Totiviridae — 312 sequences, 5 genera
- unknown (259)
- Victorivirus (47)
- Totivirus (3)
- Leishmaniavirus (2)
- Leishmania_aethiopica_RNA_virus (1)
Benyviridae — 307 sequences, 2 genera
- Benyvirus (303)
- unknown (4)
Hypoviridae — 296 sequences, 10 genera
- unknown (162)
- Alphahypovirus (61)
- Hypovirus (36)
- Betahypovirus (14)
- Epsilonhypovirus (11)
- Thetahypovirus (8)
- Cryphonectria_hypovirus_2 (1)
- Deltahypovirus (1)
- Zetahypovirus (1)
- Etahypovirus (1)
Nodaviridae — 271 sequences, 3 genera
- unknown (249)
- Betanodavirus (19)
- Alphanodavirus (3)
Cystoviridae — 271 sequences, 10 genera
- unknown (201)
- Cystovirus (41)
- Orthocystovirus (18)
- Gammacystovirus (3)
- Alphacystovirus (2)
- Betacystovirus (2)
- Deltacystovirus (1)
- Zetacystovirus (1)
- Pseudomonas_virus_phi8 (1)
- Pseudomonas_virus_phi12 (1)
Virgaviridae — 264 sequences, 6 genera
- Pomovirus (96)
- Tobravirus (75)
- unknown (55)
- Furovirus (26)
- Pecluvirus (8)
- Tobamovirus (4)
Narnaviridae — 263 sequences, 3 genera
- unknown (239)
- Narnavirus (23)
- Erysiphe_necator_associated_narnavirus_25 (1)
Circoviridae — 236 sequences, 2 genera
- unknown (213)
- Circovirus (23)
Bromoviridae — 234 sequences, 7 genera
- Ilarvirus (125)
- Cucumovirus (45)
- unknown (25)
- Anulavirus (23)
- Bromovirus (9)
- Alfamovirus (6)
- Oleavirus (1)
Pseudototiviridae — 232 sequences, 4 genera
- Leishmaniavirus (102)
- Victorivirus (74)
- Trichomonasvirus (53)
- Eimeriavirus (3)
Potyviridae — 215 sequences, 6 genera
- unknown (166)
- Poacevirus (28)
- Potyvirus (16)
- Bevemovirus (2)
- Macluravirus (2)
- Ipomovirus (1)
Solemoviridae — 165 sequences, 5 genera
- unknown (114)
- Sobemovirus (24)
- Enamovirus (17)
- Polerovirus (9)
- Cereal_yellow_dwarf_virus_RPS (1)
Picobirnaviridae — 118 sequences, 2 genera
- Orthopicobirnavirus (67)
- unknown (51)
Tobaniviridae — 115 sequences, 10 genera
- Torovirus (52)
- Bostovirus (25)
- unknown (15)
- Oncotshavirus (7)
- Pregotovirus (5)
- Bafinivirus (3)
- Septovirus (3)
- Lyctovirus (2)
- Infratovirus (2)
- Vebetovirus (1)
Pistolviridae — 91 sequences, 1 genera
- Pistolvirus (91)
Chrysoviridae — 81 sequences, 4 genera
- Betachrysovirus (28)
- Chrysovirus (25)
- Alphachrysovirus (16)
- unknown (12)
Tymoviridae — 72 sequences, 3 genera
- Marafivirus (53)
- Maculavirus (14)
- unknown (5)
Botybirnaviridae — 72 sequences, 1 genera
- Botybirnavirus (72)
Mesoniviridae — 71 sequences, 5 genera
- Alphamesonivirus (64)
- unknown (4)
- Nasenivirus (1)
- Tofonivirus (1)
- Tocinivirus (1)
Kitaviridae — 70 sequences, 5 genera
- Blunervirus (40)
- Higrevirus (21)
- Cilevirus (5)
- unknown (3)
- Tomato_blunervirus_1 (1)
f.0144 — 62 sequences, 1 genera
- unknown (62)
f.0181 — 57 sequences, 1 genera
- unknown (57)
Astroviridae — 51 sequences, 2 genera
- unknown (34)
- Mamastrovirus (17)
f.0157 — 47 sequences, 1 genera
- unknown (47)
f.0176 — 40 sequences, 1 genera
- unknown (40)
Endornaviridae — 37 sequences, 1 genera
- unknown (37)
f.0032 — 34 sequences, 1 genera
- unknown (34)
Spinareoviridae — 34 sequences, 8 genera
- Orthoreovirus (16)
- Aquareovirus (5)
- unknown (5)
- Cypovirus (3)
- Coltivirus (2)
- Oryzavirus (1)
- Fijivirus (1)
- Idnoreovirus (1)
Fusariviridae — 29 sequences, 4 genera
- unknown (16)
- Alphafusarivirus (7)
- Betafusarivirus (5)
- Gammafusarivirus (1)
Yadokariviridae — 27 sequences, 3 genera
- Alphayadokarivirus (14)
- unknown (7)
- Betayadokarivirus (6)
Caliciviridae — 25 sequences, 5 genera
- unknown (18)
- Norovirus (3)
- Nacovirus (2)
- Bavovirus (1)
- Sapovirus (1)
Fusagraviridae — 24 sequences, 2 genera
- Fusagravirus (21)
- unknown (3)
Hepeviridae — 24 sequences, 3 genera
- unknown (19)
- Rocahepevirus (4)
- Hepevirus (1)
f.0030 — 24 sequences, 1 genera
- unknown (24)
f.0040.base-Marna — 24 sequences, 1 genera
- unknown (24)
f.0167 — 22 sequences, 1 genera
- unknown (22)
f.0028.base-Dicistro — 22 sequences, 1 genera
- unknown (22)
Sedoreoviridae — 19 sequences, 5 genera
- Seadornavirus (6)
- Rotavirus (5)
- Orbivirus (3)
- unknown (3)
- Mimoreovirus (2)
Arteriviridae — 19 sequences, 5 genera
- Betaarterivirus (8)
- unknown (5)
- Etaarterivirus (4)
- Epsilonarterivirus (1)
- Kappaarterivirus (1)
f.0153 — 18 sequences, 1 genera
- unknown (18)
Megabirnaviridae — 17 sequences, 2 genera
- Megabirnavirus (15)
- unknown (2)
Spiciviridae — 17 sequences, 1 genera
- Spicivirus (17)
Betaflexiviridae — 17 sequences, 3 genera
- unknown (9)
- Carlavirus (7)
- Foveavirus (1)
f.0005 — 16 sequences, 1 genera
- unknown (16)
Solinviviridae — 16 sequences, 2 genera
- unknown (15)
- Invictavirus (1)
f.0145 — 15 sequences, 1 genera
- unknown (15)
f.0007 — 15 sequences, 1 genera
- unknown (15)
f.0033 — 14 sequences, 1 genera
- unknown (14)
Alphaflexiviridae — 14 sequences, 3 genera
- Potexvirus (6)
- unknown (6)
- Allexivirus (2)
f.0011 — 14 sequences, 1 genera
- unknown (14)
f.0008.base-Polycipi — 13 sequences, 2 genera
- unknown (12)
- Totiviridae_sp (1)
f.0164 — 13 sequences, 1 genera
- unknown (13)
Alphatetraviridae — 12 sequences, 2 genera
- Omegatetravirus (10)
- unknown (2)
Noraviridae — 12 sequences, 2 genera
- Orthonoravirus (10)
- unknown (2)
Inseviridae — 12 sequences, 1 genera
- Insevirus (12)
Amalgaviridae — 11 sequences, 2 genera
- unknown (8)
- Unirnavirus (3)
f.0123 — 11 sequences, 1 genera
- unknown (11)
f.0150 — 10 sequences, 1 genera
- unknown (10)
Birnaviridae — 10 sequences, 1 genera
- unknown (10)
Ootiviridae — 10 sequences, 1 genera
- Ootivirus (10)
f.0024.base-Solinvi — 10 sequences, 1 genera
- unknown (10)
f.0035 — 10 sequences, 1 genera
- unknown (10)
Artiviridae — 9 sequences, 1 genera
- Artivirus (9)
Deltaflexiviridae — 9 sequences, 2 genera
- unknown (6)
- Deltaflexivirus (3)
f.0025 — 9 sequences, 1 genera
- unknown (9)
f.0048.base-Marna — 9 sequences, 1 genera
- unknown (9)
Mayoviridae — 8 sequences, 2 genera
- Idaeovirus (5)
- unknown (3)
f.0148 — 8 sequences, 1 genera
- unknown (8)
f.0282.base-Megabirna — 8 sequences, 1 genera
- unknown (8)
Phlegiviridae — 7 sequences, 1 genera
- Phlegivirus (7)
f.0066 — 7 sequences, 1 genera
- unknown (7)
Giardiaviridae — 6 sequences, 1 genera
- Giardiavirus (6)
f.0019.base-Solinvi — 6 sequences, 1 genera
- unknown (6)
f.0125 — 6 sequences, 1 genera
- unknown (6)
f.0026.base-Dicistro — 5 sequences, 1 genera
- unknown (5)
f.0049.base-Marna — 5 sequences, 1 genera
- unknown (5)
f.0160 — 5 sequences, 1 genera
- unknown (5)
f.0285 — 4 sequences, 1 genera
- unknown (4)
f.0052 — 4 sequences, 1 genera
- unknown (4)
f.0180 — 4 sequences, 1 genera
- unknown (4)
f.0292 — 4 sequences, 1 genera
- unknown (4)
f.0010.base-Polycipi — 4 sequences, 1 genera
- unknown (4)
f.0278 — 4 sequences, 1 genera
- unknown (4)
Kyanoviridae — 4 sequences, 1 genera
- unknown (4)
Medioniviridae — 3 sequences, 3 genera
- Turrinivirus (1)
- Bolenivirus (1)
- unknown (1)
Hadakaviridae — 3 sequences, 1 genera
- Hadakavirus (3)
f.0012.base-Solinvi — 3 sequences, 1 genera
- unknown (3)
f.0044.base-Marna — 3 sequences, 1 genera
- unknown (3)
f.0042.base-Marna — 3 sequences, 1 genera
- unknown (3)
f.0039.base-Marna — 3 sequences, 1 genera
- unknown (3)
f.0161 — 3 sequences, 1 genera
- unknown (3)
f.0059 — 3 sequences, 1 genera
- unknown (3)
f.0179 — 3 sequences, 1 genera
- unknown (3)
f.0058 — 3 sequences, 1 genera
- unknown (3)
f.0166 — 3 sequences, 1 genera
- unknown (3)
f.0017.base-Solinvi — 3 sequences, 1 genera
- unknown (3)
Phycodnaviridae — 3 sequences, 2 genera
- unknown (2)
- Prasinovirus (1)
Mimiviridae — 3 sequences, 2 genera
- unknown (2)
- Mimivirus (1)
Sinhaliviridae — 2 sequences, 1 genera
- unknown (2)
Quadriviridae — 2 sequences, 1 genera
- Quadrivirus (2)
Togaviridae — 2 sequences, 2 genera
- Alphavirus (1)
- unknown (1)
Lebotiviridae — 2 sequences, 1 genera
- Lebotivirus (2)
Cremegaviridae — 2 sequences, 2 genera
- Pontunivirus (1)
- Sicregavirus (1)
f.0295 — 2 sequences, 1 genera
- unknown (2)
f.0169 — 2 sequences, 1 genera
- unknown (2)
f.0162 — 2 sequences, 1 genera
- unknown (2)
f.0127.base-Noda — 2 sequences, 1 genera
- unknown (2)
f.0046.base-Marna — 2 sequences, 1 genera
- unknown (2)
f.0287 — 2 sequences, 2 genera
- unknown (1)
- Botrytis_cinerea_botybirnavirus_2 (1)
f.0146 — 2 sequences, 1 genera
- unknown (2)
Barnaviridae — 1 sequences, 1 genera
- unknown (1)
Nanhypoviridae — 1 sequences, 1 genera
- Sajorinivirus (1)
Olifoviridae — 1 sequences, 1 genera
- Kukrinivirus (1)
Gresnaviridae — 1 sequences, 1 genera
- Cyclophivirus (1)
Reoviridae — 1 sequences, 1 genera
- Avian_orthoreovirus (1)
f.0221.base-Alphatetra — 1 sequences, 1 genera
- unknown (1)
f.0050 — 1 sequences, 1 genera
- unknown (1)
f.0071 — 1 sequences, 1 genera
- unknown (1)
f.0286 — 1 sequences, 1 genera
- unknown (1)
f.0102.base-Curvula — 1 sequences, 1 genera
- unknown (1)
f.0027.base-Dicistro — 1 sequences, 1 genera
- unknown (1)
f.0041.base-Marna — 1 sequences, 1 genera
- unknown (1)
f.0034 — 1 sequences, 1 genera
- unknown (1)
f.0165 — 1 sequences, 1 genera
- unknown (1)
f.0170 — 1 sequences, 1 genera
- unknown (1)
f.0124 — 1 sequences, 1 genera
- unknown (1)
f.0076 — 1 sequences, 1 genera
- unknown (1)
f.0020.base-Solinvi — 1 sequences, 1 genera
- unknown (1)
f.0182 — 1 sequences, 1 genera
- unknown (1)
f.0072 — 1 sequences, 1 genera
- unknown (1)
f.0177 — 1 sequences, 1 genera
- unknown (1)
f.0111 — 1 sequences, 1 genera
- unknown (1)
f.0107.base-Curvula — 1 sequences, 1 genera
- unknown (1)
f.0159 — 1 sequences, 1 genera
- unknown (1)
f.0095.base-Permutotetra — 1 sequences, 1 genera
- unknown (1)
f.0043.base-Marna — 1 sequences, 1 genera
- unknown (1)
f.0155 — 1 sequences, 1 genera
- unknown (1)
f.0037.base-Calici — 1 sequences, 1 genera
- unknown (1)
Gammaflexiviridae — 1 sequences, 1 genera
- Gammaflexivirus (1)
Alloherpesviridae — 1 sequences, 1 genera
- unknown (1)
Straboviridae — 1 sequences, 1 genera
- unknown (1)
Herpesviridae — 1 sequences, 1 genera
- unknown (1)
Curvulaviridae — 1 sequences, 1 genera
- unknown (1)
Baculoviridae — 1 sequences, 1 genera
- unknown (1)
Monocitiviridae — 1 sequences, 1 genera
- Monocitivirus (1)