Results 21 to 30 of about 847 (121)

A Glimpse of Nucleo-Cytoplasmic Large DNA Virus Biodiversity through the Eukaryotic Genomics Window

open access: yesViruses, 2017
The nucleocytoplasmic large DNA viruses (NCLDV) are a group of extremely complex double-stranded DNA viruses, which are major parasites of a variety of eukaryotes. Recent studies showed that certain eukaryotes contain fragments of NCLDV DNA integrated in
Lucie Gallot-Lavallée, Guillaume Blanc
doaj   +1 more source

The Mimivirus L375 Nudix enzyme hydrolyzes the 5' mRNA cap.

open access: yesPLoS ONE, 2021
The giant Mimivirus is a member of the nucleocytoplasmic large DNA viruses (NCLDV), a group of diverse viruses that contain double-stranded DNA (dsDNA) genomes that replicate primarily in eukaryotic hosts.
Grace Kago, Susan Parrish
doaj   +1 more source

Viral suppressor of RNA silencing in vascular plants also interferes with the development of the bryophyte Physcomitrella patens

open access: yesPlant, Cell &Environment, Volume 45, Issue 1, Page 220-235, January 2022., 2022
Abstract Plant viruses are important pathogens able to overcome plant defense mechanisms using their viral suppressors of RNA silencing (VSR). Small RNA pathways of bryophytes and vascular plants have significant similarities, but little is known about how viruses interact with mosses. This study elucidated the responses of Physcomitrella patens to two
Eeva M. Marttinen   +4 more
wiley   +1 more source

Evolution of DNA ligases of Nucleo-Cytoplasmic Large DNA viruses of eukaryotes: a case of hidden complexity

open access: yesBiology Direct, 2009
Background Eukaryotic Nucleo-Cytoplasmic Large DNA Viruses (NCLDV) encode most if not all of the enzymes involved in their DNA replication. It has been inferred that genes for these enzymes were already present in the last common ancestor of the NCLDV ...
Koonin Eugene V, Yutin Natalya
doaj   +1 more source

A vertically transmitted amalgavirus is present in certain accessions of the bryophyte Physcomitrium patens

open access: yesThe Plant Journal, Volume 108, Issue 6, Page 1786-1797, December 2021., 2021
Summary In the last few years, next‐generation sequencing techniques have started to be used to identify new viruses infecting plants. This has allowed to rapidly increase our knowledge on viruses other than those causing symptoms in economically important crops. Here we used this approach to identify a virus infecting Physcomitrium patens that has the
Pol Vendrell‐Mir   +7 more
wiley   +1 more source

Eukaryotic large nucleo-cytoplasmic DNA viruses: Clusters of orthologous genes and reconstruction of viral genome evolution

open access: yesVirology Journal, 2009
Background The Nucleo-Cytoplasmic Large DNA Viruses (NCLDV) comprise an apparently monophyletic class of viruses that infect a broad variety of eukaryotic hosts.
Koonin Eugene V   +3 more
doaj   +1 more source

Zooming on dynamics of marine microbial communities in the phycosphere of Akashiwo sanguinea (Dinophyta) blooms

open access: yesMolecular Ecology, Volume 30, Issue 1, Page 207-221, January 2021., 2021
Abstract Characterizing ecological relationships between viruses, bacteria and phytoplankton in the ocean is critical to understanding the ecosystem; however, these relationships are infrequently investigated together. To understand the dynamics of microbial communities and environmental factors in harmful algal blooms (HABs), we examined the ...
Junsu Kang   +12 more
wiley   +1 more source

Advantages and Limits of Metagenomic Assembly and Binning of a Giant Virus

open access: yesmSystems, 2020
Giant viruses have large genomes, often within the size range of cellular organisms. This distinguishes them from most other viruses and demands additional effort for the successful recovery of their genomes from environmental sequence data.
Frederik Schulz   +7 more
doaj   +3 more sources

Phylogenetic evidence for extensive lateral acquisition of cellular genes by Nucleocytoplasmic large DNA viruses

open access: yesBMC Evolutionary Biology, 2008
Background Nucleo-Cytoplasmic Large DNA viruses (NCLDV), a diverse group that infects a wide range of eukaryotic hosts, exhibit a large heterogeneity in genome size (between 100 kb and 1.2 Mb) but have been suggested to form a monophyletic group on the ...
Chandler Mick   +2 more
doaj   +1 more source

Phylogenetic and phyletic studies of informational genes in genomes highlight existence of a 4 domain of life including giant viruses. [PDF]

open access: yesPLoS ONE, 2010
The discovery of Mimivirus, with its very large genome content, made it possible to identify genes common to the three domains of life (Eukarya, Bacteria and Archaea) and to generate controversial phylogenomic trees congruent with that of ribosomal genes,
Mickaël Boyer   +4 more
doaj   +1 more source

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