Viruses are the most abundant biological entities in aquatic ecosystems and harbor an enormous amount of genetic diversity. Whereas their influence on marine ecosystems is widely acknowledged, current information about their diversity remains limited. We conducted a viral metagenomic analysis of water samples collected during the austral summer of 2016 from the South Scotia Ridge (SSR), near the Antarctic Peninsula. The taxonomic composition and diversity of the viral communities were investigated, and a functional assessment of the sequences was performed. Phylotypic analysis showed that most viruses belonged to the order Caudovirales, especially the family Podoviridae (41.92⁻48.7%), which is similar to the situation in the Pacific Ocean. Functional analysis revealed a relatively high frequency of phage-associated and metabolism genes. Phylogenetic analyses of phage TerL and Capsid_NCLDV (nucleocytoplasmic large DNA viruses) marker genes indicated that many sequences associated with Caudovirales and NCLDV were novel and distinct from known phage genomes. High Phaeocystis globosa virus virophage (Pgvv) signatures were found and complete and partial Pgvv-like were obtained, which influence host⁻virus interactions. Our study expa...Continue Reading
Characterization of different viruses infecting the marine harmful algal bloom species Phaeocystis globosa
A broad-host-range, generalized transducing phage (SN-T) acquires 16S rRNA genes from different genera of bacteria
Prevalence of lysogeny among soil bacteria and presence of 16S rRNA and trzN genes in viral-community DNA.
Phylogenetic analysis of members of the Phycodnaviridae virus family, using amplified fragments of the major capsid protein gene.
The metagenomics RAST server - a public resource for the automatic phylogenetic and functional analysis of metagenomes
Recent changes in phytoplankton communities associated with rapid regional climate change along the western Antarctic Peninsula
Amplification methods bias metagenomic libraries of uncultured single-stranded and double-stranded DNA viruses.
IDBA-UD: a de novo assembler for single-cell and metagenomic sequencing data with highly uneven depth
Evaluation of methods to concentrate and purify ocean virus communities through comparative, replicated metagenomics.
Viruses in the desert: a metagenomic survey of viral communities in four perennial ponds of the Mauritanian Sahara.
The Pacific Ocean virome (POV): a marine viral metagenomic dataset and associated protein clusters for quantitative viral ecology
Global morphological analysis of marine viruses shows minimal regional variation and dominance of non-tailed viruses
Isolation and complete genome sequence of a novel cyanophage, S-B05, infecting an estuarine Synechococcus strain: insights into environmental adaptation
Genome Analysis of Two Novel Synechococcus Phages That Lack Common Auxiliary Metabolic Genes: Possible Reasons and Ecological Insights by Comparative Analysis of Cyanomyoviruses.
Metagenomic Analysis of the Diversity of DNA Viruses in the Surface and Deep Sea of the South China Sea
Metagenomics of wastewater phageome identifies an extensively cored antibiotic resistome in a swine feedlot water treatment environment.
Characterization and genomic analysis of the first Oceanospirillum phage, vB_OliS_GJ44, representing a novel siphoviral cluster.
Bacteriophage: Phage Therapy
Phage therapy uses bacterial viruses (bacteriophages) to treat bacterial infections and is widely being recognized as an alternative to antibiotics. Here is the latest research.