Diversity and genomics of giant viruses in the North Pacific Subtropical Gyre

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dc.contributor.authorFarzad, Roxannaen
dc.contributor.authorHa, Anh D.en
dc.contributor.authorAylward, Frank O.en
dc.date.accessioned2023-04-18T15:06:13Zen
dc.date.available2023-04-18T15:06:13Zen
dc.date.issued2022-11en
dc.description.abstractLarge double-stranded DNA viruses of the phylum Nucleocytoviricota, often referred to as "giant viruses," are ubiquitous members of marine ecosystems that are important agents of mortality for eukaryotic plankton. Although giant viruses are known to be prevalent in marine systems, their activities in oligotrophic ocean waters remain unclear. Oligotrophic gyres constitute the majority of the ocean and assessing viral activities in these regions is therefore critical for understanding overall marine microbial processes. In this study, we generated 11 metagenome-assembled genomes (MAGs) of giant viruses from samples previously collected from Station ALOHA in the North Pacific Subtropical Gyre. Phylogenetic analyses revealed that they belong to the orders Imitervirales (n =6), Algavirales (n =4), and Pimascovirales (n =1). Genome sizes ranged from similar to 119-574 kbp, and several of the genomes encoded predicted TCA cycle components, cytoskeletal proteins, collagen, rhodopsins, and proteins potentially involved in other cellular processes. Comparison with other marine metagenomes revealed that several have broad distribution across ocean basins and represent abundant viral constituents of pelagic surface waters. Our work sheds light on the diversity of giant viruses present in oligotrophic ocean waters across the globe.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.3389/fmicb.2022.1021923en
dc.identifier.eissn1664-302Xen
dc.identifier.other1021923en
dc.identifier.pmid36504832en
dc.identifier.urihttp://hdl.handle.net/10919/114538en
dc.identifier.volume13en
dc.language.isoenen
dc.publisherFrontiersen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectgiant virusesen
dc.subjectmarine virusesen
dc.subjectstation ALOHAen
dc.subjectPrasinoviridaeen
dc.subjectMesomimiviridaeen
dc.subjectNucleocytoviricotaen
dc.titleDiversity and genomics of giant viruses in the North Pacific Subtropical Gyreen
dc.title.serialFrontiers in Microbiologyen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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