A Marseillevirus isolate from the Brazilian wetlands
Marseilleviruses are giant viruses that infect amoebas and have been isolated from various environments. Here, we describe a new strain, isolated from a water sample collected from the Paraguay River in the Brazilian Pantanal, which we have named "Marseillevirus pantanense". Transmission and scanning electron microscopy revealed icosahedral particles approximately 190 nm in diameter. Genomic and phylogenetic analyses show that M. pantanense has a 379,900-bp genome with 496 open reading frames, including 12 ORFans and two tRNAs. Furthermore, phylogenetic analysis places M. pantanense within Marseillevirus lineage A, group I. The findings of in this study underscore the importance of isolating new viruses to expand our understanding of the abundance and distribution of giant viruses in Brazilian biomes.
Authors
- Luiz Henrique Rosa (ORCID: https://orcid.org/0000-0001-9749-5182)
- Jônatas Santos Abrahão (ORCID: https://orcid.org/0000-0001-9420-1791)
- Talita Bastos Machado (ORCID: https://orcid.org/0000-0002-6841-9874)
- João Pessoa Araújo (ORCID: https://orcid.org/0000-0002-9153-1485)
- Victória Fulgêncio Queiroz (ORCID: https://orcid.org/0000-0002-8749-6170)
- Nídia Esther Colquehuanca Arias (ORCID: https://orcid.org/0000-0002-6434-0181)
- Matheus Felipe dos Reis Rodrigues (ORCID: https://orcid.org/0000-0002-4469-2534)
- João Victor R. P. Carvalho (ORCID: https://orcid.org/0000-0002-7216-0738)
- Rodrigo Araújo Lima Rodrigues (ORCID: https://orcid.org/0000-0001-7148-4012)
- Luíz Carlos Júnior Alcântara (ORCID: https://orcid.org/0000-0002-6769-9931)
Institutions
- Universidade Federal de Minas Gerais (BR)
- Hospital das Clínicas da Universidade Federal de Minas Gerais (BR)
- Fundação Oswaldo Cruz (BR)
- Virginia Tech (US)
- Universidade Estadual Paulista (Unesp) (BR)
Publication Details
- Journal
- Archives of Virology
- Published
- 2025-11-21
- DOI
- https://doi.org/10.1007/s00705-025-06456-6
- Primary Topic
- Bacteriophages and microbial interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Pesquisa do Estado de Minas Gerais
- Universidade Federal de Minas Gerais
- National Institutes of Health
- Pan American Health Organization