Large-scale invasion of unicellular eukaryotic genomes by integrating DNA viruses. [PDF]
Proc Natl Acad Sci U S A, 2023 Eukaryotic genomes contain a variety of endogenous viral elements (EVEs), which are mostly derived from RNA and ssDNA viruses that are no longer functional and are considered to be “genomic fossils.” Genomic surveys of EVEs, however, are strongly biased ...
Bellas C +5 more
europepmc +3 more sources
Amoebae, Giant Viruses, and Virophages Make Up a Complex, Multilayered Threesome
Frontiers in Cellular and Infection Microbiology, 2018 Viral infection had not been observed for amoebae, until the Acanthamoeba polyphaga mimivirus (APMV) was discovered in 2003. APMV belongs to the nucleocytoplasmatic large DNA virus (NCLDV) family and infects not only A.
Christian Hammann
exaly +3 more sources
Lineage-specific expansions of polinton-like viruses in photosynthetic cryptophytes [PDF]
MicrobiomeBackground Polinton-like viruses (PLVs) are diverse eukaryotic DNA viral elements (14–40 kb) that often undergo significant expansion within protist genomes through repeated insertion events. Emerging evidence indicates they function as antiviral defense
Paul-Adrian Bulzu +2 more
doaj +2 more sources
Seasonal dynamics and diversity of Antarctic marine viruses reveal a novel viral seascape. [PDF]
Nat CommunThe Southern Ocean microbial ecosystem, with its pronounced seasonal shifts, is vulnerable to the impacts of climate change. Since viruses are key modulators of microbial abundance, diversity, and evolution, we need a better understanding of the effects ...
Piedade GJ +11 more
europepmc +5 more sources
Ecogenomics of virophages and their giant virus hosts assessed through time series metagenomics
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 +2 more
exaly +2 more sources
Virophage control of antarctic algal host-virus dynamics [PDF]
Proceedings of the National Academy of Sciences, 2011 es are abundant ubiquitous members of microbial communities and in the marine environment affect population structure and nutrient cycling by infecting and lysing primary producers.
Andrews-Pfannkoch, C +10 more
core +4 more sources
Molecular architecture of giant viruses infecting microbial eukaryotes (protists) [PDF]
BioTechnologiaIn this review, I describe recent findings on the molecular architecture and genomic characterization of giant viruses that infect microbial eukaryotes (protists) across diverse ecosystems and ecological niches.
Anhelina Kyrychenko
doaj +2 more sources
Genome and Environmental Activity of a Chrysochromulina parva Virus and Its Virophages [PDF]
Frontiers in Microbiology, 2019 Some giant viruses are ecological agents that are predicted to be involved in the top-down control of single-celled eukaryotic algae populations in aquatic ecosystems.
Joshua M. A. Stough +10 more
doaj +3 more sources
Viral dynamics in a high-rate algal pond reveals a burst of Phycodnaviridae diversity correlated with episodic algal mortality [PDF]
mBioThis study explores virus-host dynamics in a unique environment: an industrial high-rate algal pond (HRAP). A wealth of novel DNA algal viruses are revealed, including members of Nucleocytoviricota “giant viruses” and the enigmatic Preplasmiviricota (e.g.
E. E. Chase +7 more
doaj +2 more sources
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
doaj +5 more sources