{"doi":"10.1128/jvi.00831-24","title":"<i>Ambiviricota</i> , a novel ribovirian phylum for viruses with viroid-like properties","abstract":"ABSTRACT Fungi harbor a vast diversity of mobile genetic elements (MGEs). Recently, novel fungal MGEs, tentatively referred to as ‘ambiviruses,’ were described. ‘Ambiviruses’ have single-stranded RNA genomes of about 4–5 kb in length that contain at least two open reading frames (ORFs) in non-overlapping ambisense orientation. Both ORFs are conserved among all currently known ‘ambiviruses,’ and one of them encodes a distinct viral RNA-directed RNA polymerase (RdRP), the hallmark gene of ribovirian kingdom Orthornavirae . However, ‘ambivirus’ genomes are circular and predicted to replicate via a rolling-circle mechanism. Their genomes are also predicted to form rod-like structures and contain ribozymes in various combinations in both sense and antisense orientations—features reminiscent of viroids, virusoids, ribozyvirian kolmiovirids, and yet-unclassified MGEs (such as ‘epsilonviruses,’ ‘zetaviruses,’ and some ‘obelisks’). As a first step toward the formal classification of ‘ambiviruses,’ the International Committee on Taxonomy of Viruses (ICTV) recently approved the establishment of a novel ribovirian phylum, Ambiviricota , to accommodate an initial set of 20 members with well-annotated genome sequences.","journal":"Journal of Virology","year":2024,"id":484093,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":17,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9456,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2024-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1325677,"name":"Leticia Botella","orcid":"0000-0002-6613-5405","position":1,"is_corresponding":false},{"id":1207247,"name":"Marcos de la Peña","orcid":"0000-0002-7949-8459","position":2,"is_corresponding":false},{"id":1325678,"name":"Eeva J. Vainio","orcid":"0000-0002-6739-7968","position":3,"is_corresponding":false},{"id":109878,"name":"Mart Krupovìč","orcid":"0000-0001-5486-0098","position":4,"is_corresponding":false},{"id":63487,"name":"Benjamin D. Lee","orcid":"0000-0002-7133-8397","position":5,"is_corresponding":false},{"id":1325679,"name":"Beatriz Navarro","orcid":"0000-0001-8981-1018","position":6,"is_corresponding":false},{"id":658538,"name":"Sead Sabanadzovic","orcid":"0000-0002-2995-2633","position":7,"is_corresponding":false},{"id":106094,"name":"Peter Simmonds","orcid":"0000-0002-7964-4700","position":8,"is_corresponding":false},{"id":1142098,"name":"Massimo Turina","orcid":"0000-0002-9659-9470","position":9,"is_corresponding":false},{"id":109882,"name":"Jens H. Kuhn","orcid":"0000-0002-7800-6045","position":0,"is_corresponding":true}],"reference_count":33,"raw_metadata":null,"created_at":"2026-07-19T02:07:38.055693Z","pmid":"38856119","pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}