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The Virophage Family Lavidaviridae
Current Issues in Molecular Biology, 2020 Double-stranded (ds) DNA viruses of the family Lavidaviridae, commonly known as virophages, are a fascinating group of eukaryotic viruses that depend on a coinfecting giant dsDNA virus of the Mimiviridae for their propagation.
Matthias G. Fischer
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Complex transcriptional regulations of a hyperparasitic quadripartite system in giant viruses infecting protists [PDF]
Nature CommunicationsHyperparasitism is a common pattern in nature that is not limited to cellular organisms. Giant viruses infecting protists can be hyperparasitized by smaller ones named virophages.
Alexandra Bessenay +8 more
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Diversity, evolution, and classification of virophages uncovered through global metagenomics [PDF]
Microbiome, 2019 Background Virophages are small viruses with double-stranded DNA genomes that replicate along with giant viruses and co-infect eukaryotic cells. Due to the paucity of virophage reference genomes, a collective understanding of the global virophage ...
David Paez-Espino +12 more
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Broad spectrum of mimiviridae virophage allows its isolation using a mimivirus reporter. [PDF]
PLoS ONE, 2013 The giant virus Mimiviridae family includes 3 groups of viruses: group A (includes Acanthamoeba polyphaga Mimivirus), group B (includes Moumouvirus) and group C (includes Megavirus chilensis).
Morgan Gaia +5 more
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Evolution of exploitation and replication of giant viruses and virophages. [PDF]
Virus EvolTripartite biotic interactions are inherently complex, and the strong interdependence of species and often one-sided exploitation can make these systems vulnerable to extinction. The persistence of species depends then on the balance between exploitation
Del Arco A, Fischer MG, Becks L.
europepmc +3 more sources
Polinton-like viruses are abundant in aquatic ecosystems [PDF]
Microbiome, 2021 Background Polintons are large mobile genetic elements found in the genomes of eukaryotic organisms that are considered the ancient ancestors of most eukaryotic dsDNA viruses.
Christopher M. Bellas, Ruben Sommaruga
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How the virophage compels the need to readdress the classification of microbes
Virology, 2015 The discovery of Mimivirus opened the door to reclassifying viruses and microorganisms. Because the definition of a virus had been based on their putative small size, giant viruses have been widely neglected, as have their own viral parasites: the ...
Raoult, Didier
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Inside the Lifestyle of the Virophage
Intervirology, 2010 International audienceObjective(s): We sought to better characterize Sputnik, the first isolated virophage, and to analyze its parasitic lifestyle during co-infection with Marseillevirus (a new giant virus) in Acanthamoeba castellanii.
Desnues, Christelle +3 more
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iScience, 2018 Summary: A clustered regularly interspaced short palindromic repeats (CRISPR)-like “mimivirus virophage resistance element” (MIMIVIRE) system, which contains specific cascade genes and a CRISPR array against virophages, was reported in mimiviruses.
Chao Dou +9 more
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Ecogenomics of virophages and their giant virus hosts assessed through time series metagenomics [PDF]
Nature Communications, 2017 Virophages are recently-identified small viruses that infect larger viruses, yet their diversity and ecological roles are poorly understood. Here, Roux and colleagues present time series metagenomics data revealing new virophage genera and their putative
Simon Roux +5 more
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