Results 51 to 60 of about 459 (134)
The Common Ancestor of Archaea and Eukarya Was Not an Archaeon
Archaea, Volume 2013, Issue 1, 2013., 2013 It is often assumed that eukarya originated from archaea. This view has been recently supported by phylogenetic analyses in which eukarya are nested within archaea. Here, I argue that these analyses are not reliable, and I critically discuss archaeal ancestor scenarios, as well as fusion scenarios for the origin of eukaryotes.
Patrick Forterre +1 more
wiley +1 more source
Evolutionary dynamics of giant viruses and their virophages [PDF]
Ecology and Evolution, 2013 Abstract Giant viruses contain large genomes, encode many proteins atypical for viruses, replicate in large viral factories, and tend to infect protists. The giant virus replication factories can in turn be infected by so called virophages, which are smaller viruses that negatively impact giant virus replication ...
openaire +5 more sources
Smaller Fleas: Viruses of Microorganisms
Scientifica, Volume 2012, Issue 1, 2012., 2012 Life forms can be roughly differentiated into those that are microscopic versus those that are not as well as those that are multicellular and those that, instead, are unicellular. Cellular organisms seem generally able to host viruses, and this propensity carries over to those that are both microscopic and less than truly multicellular.
Paul Hyman +5 more
wiley +1 more source
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.
Jan Diesend +3 more
doaj +1 more source
Environmental Microbiology Reports, Volume 17, Issue 6, December 2025.This paper describes monitoring of outgoing water from drinking water treatment plants, geographically spread over half of Sweden and sampled every other month for 1 year. We found differences in the virome from the different water sources from each plant as well as differences in virus size and seasonal variation, where we also could detect viruses in
Fredy Saguti +10 more
wiley +1 more source
iMetaOmics, Volume 2, Issue 2, June 2025.Botswana's Seronga region saw a mass elephant die‐off potentially linked to water sources. This study analyzes Okavango Delta metagenomes, uncovering a diversity of viruses and harmful pathogens. Findings highlight the importance of understanding viral ecology in these waters and support One Health's objective in protecting human, animal, and ecosystem
Emilie J. Skoog +8 more
wiley +1 more source
Dinucleotide biases in the genomes of prokaryotic and eukaryotic dsDNA viruses and their hosts
Molecular Ecology, Volume 33, Issue 6, March 2024.Abstract The genomes of cellular organisms display CpG and TpA dinucleotide composition biases. Such biases have been poorly investigated in dsDNA viruses. Here, we show that in dsDNA virus, bacterial, and eukaryotic genomes, the representation of TpA and CpG dinucleotides is strongly dependent on genomic G + C content.
Diego Forni +3 more
wiley +1 more source
MG-Digger: an automated pipeline to search for giant virus-related sequences in metagenomes
Frontiers in Microbiology, 2016 The number of metagenomic studies conducted each year is growing dramatically. Storage and analysis of such big data is difficult and time-consuming. Interestingly, analysis shows that environmental and human metagenomes include a significant amount of ...
Jonathan eVerneau +4 more
doaj +1 more source
Environmental Microbiology, Volume 26, Issue 2, February 2024.Relative abundance of the metagenome‐assembled viral genomes (bottom arch) identified in the hindgut metagenomes and metatranscriptomes of Epibolus pulchripes and Glomeris connexa. The top arch shows the coverage of each viral phylum mapped to the identified metagenome‐assembled viral genomes in transcripts per million.
Julius Eyiuche Nweze +2 more
wiley +1 more source
The evolutionary ecology of molecular replicators [PDF]
Royal Society Open Science, 2016 By reasonable criteria, life on the Earth consists mainly of molecular replicators. These include viruses, transposons, transpovirons, coviruses and many more, with continuous new discoveries like Sputnik Virophage.
Sean Nee
doaj +1 more source