Metagenomic Characterization of the Viral Community of the South Scotia Ridge
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 wat...
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ftpubmed:oai:pubmedcentral.nih.gov:6410227 2023-05-15T13:39:26+02:00 Metagenomic Characterization of the Viral Community of the South Scotia Ridge Yang, Qingwei Gao, Chen Jiang, Yong Wang, Min Zhou, Xinhao Shao, Hongbing Gong, Zheng McMinn, Andrew 2019-01-24 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410227/ http://www.ncbi.nlm.nih.gov/pubmed/30678352 https://doi.org/10.3390/v11020095 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410227/ http://www.ncbi.nlm.nih.gov/pubmed/30678352 http://dx.doi.org/10.3390/v11020095 © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Article Text 2019 ftpubmed https://doi.org/10.3390/v11020095 2019-04-07T00:26:38Z 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 expands existing knowledge of viral communities and their diversities from the Antarctic region and provides basic data for further exploring polar microbiomes. Text Antarc* Antarctic Antarctic Peninsula PubMed Central (PMC) Antarctic Antarctic Peninsula Austral Pacific South Scotia Ridge ENVELOPE(-46.500,-46.500,-60.000,-60.000) The Antarctic Viruses 11 2 95 |
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Article Yang, Qingwei Gao, Chen Jiang, Yong Wang, Min Zhou, Xinhao Shao, Hongbing Gong, Zheng McMinn, Andrew Metagenomic Characterization of the Viral Community of the South Scotia Ridge |
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description |
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 expands existing knowledge of viral communities and their diversities from the Antarctic region and provides basic data for further exploring polar microbiomes. |
format |
Text |
author |
Yang, Qingwei Gao, Chen Jiang, Yong Wang, Min Zhou, Xinhao Shao, Hongbing Gong, Zheng McMinn, Andrew |
author_facet |
Yang, Qingwei Gao, Chen Jiang, Yong Wang, Min Zhou, Xinhao Shao, Hongbing Gong, Zheng McMinn, Andrew |
author_sort |
Yang, Qingwei |
title |
Metagenomic Characterization of the Viral Community of the South Scotia Ridge |
title_short |
Metagenomic Characterization of the Viral Community of the South Scotia Ridge |
title_full |
Metagenomic Characterization of the Viral Community of the South Scotia Ridge |
title_fullStr |
Metagenomic Characterization of the Viral Community of the South Scotia Ridge |
title_full_unstemmed |
Metagenomic Characterization of the Viral Community of the South Scotia Ridge |
title_sort |
metagenomic characterization of the viral community of the south scotia ridge |
publisher |
MDPI |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410227/ http://www.ncbi.nlm.nih.gov/pubmed/30678352 https://doi.org/10.3390/v11020095 |
long_lat |
ENVELOPE(-46.500,-46.500,-60.000,-60.000) |
geographic |
Antarctic Antarctic Peninsula Austral Pacific South Scotia Ridge The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Austral Pacific South Scotia Ridge The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula |
genre_facet |
Antarc* Antarctic Antarctic Peninsula |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410227/ http://www.ncbi.nlm.nih.gov/pubmed/30678352 http://dx.doi.org/10.3390/v11020095 |
op_rights |
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/v11020095 |
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Viruses |
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95 |
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1766118921477292032 |