The Discovery of a New Mimivirus Isolate in Association with Virophage-Transpoviron Elements in Brazil Highlights the Main Genomic and Evolutionary Features of This Tripartite System

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Autor(es): dc.contributorUniversidade Federal de Minas Gerais (UFMG)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorde Azevedo, Bruna Luiza-
Autor(es): dc.creatorAraújo Júnior, João Pessoa-
Autor(es): dc.creatorUllmann, Leila Sabrina-
Autor(es): dc.creatorRodrigues, Rodrigo Araújo Lima-
Autor(es): dc.creatorAbrahão, Jônatas Santos-
Data de aceite: dc.date.accessioned2025-08-21T20:39:24Z-
Data de disponibilização: dc.date.available2025-08-21T20:39:24Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/v14020206-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/230247-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/230247-
Descrição: dc.descriptionMimiviruses are giant viruses of amoeba that can be found in association with virophages. These satellite-like viruses are dependent on the mimivirus viral factory to replicate. Mimiviruses can also be associated with linear DNA molecules called transpovirons. Transpovirons and virophages are important drivers of giant virus evolution although they are still poorly studied elements. Here, we describe the isolation and genomic characterization of a mimivirus/virophage/transpoviron tripartite system from Brazil. We analyzed transmission electron microscopy images and performed genome sequencing and assembly, gene annotation, and phylogenetic analysis. Our data confirm the isolation of a lineage A mimivirus (1.2 Mb/1012 ORFs), called mimivirus argentum, and a sputnik virophage (18,880 bp/20 ORFs). We also detected a third sequence corresponding to a transpoviron from clade A (6365 bp/6 ORFs) that presents small terminal inverted repeats (77 nt). The main genomic features of mimivirus argentum and of its virophage/transpoviron elements corroborates with what is described for other known elements. This highlights that this triple genomic and biological interaction may be ancient and well-conserved. The results expand the basic knowledge about unique and little-known elements and pave the way to future studies that might contribute to a better understanding of this tripartite relationship.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionLaboratório de Vírus Departamento de Microbiologia Universidade Federal de Minas Gerais (UFMG), MG-
Descrição: dc.descriptionLaboratório de Virologia Departamento de Microbiologia e Imunologia Instituto de Biotecnologia Universidade Estadual Paulista (Unesp), Alameda das Tecomarias s/n, Chácara Capão Bonito, SP-
Descrição: dc.descriptionLaboratório de Virologia Departamento de Microbiologia e Imunologia Instituto de Biotecnologia Universidade Estadual Paulista (Unesp), Alameda das Tecomarias s/n, Chácara Capão Bonito, SP-
Descrição: dc.descriptionCNPq: 302081/2018-6-
Idioma: dc.languageen-
Relação: dc.relationViruses-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGiant viruses-
Palavras-chave: dc.subjectMimivirus-
Palavras-chave: dc.subjectTranspoviron-
Palavras-chave: dc.subjectVirophage-
Título: dc.titleThe Discovery of a New Mimivirus Isolate in Association with Virophage-Transpoviron Elements in Brazil Highlights the Main Genomic and Evolutionary Features of This Tripartite System-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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