Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [368078] |
Genomic adaptation of giant viruses in polar oceans
Meng, L.; Delmont, T.O.; Gaia, M.; Pelletier, E.; Fernàndez-Guerra, A.; Chaffron, S.; Neches, R.Y.; Wu, J.; Kaneko, H.; Endo, H.; Ogata, H. (2023). Genomic adaptation of giant viruses in polar oceans. Nature Comm. 14(1): 6233. https://dx.doi.org/10.1038/s41467-023-41910-6
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723, meer
|   |
| Auteurs | | Top |
- Meng, L.
- Delmont, T.O.
- Gaia, M.
- Pelletier, E.
|
- Fernàndez-Guerra, A.
- Chaffron, S., meer
- Neches, R.Y.
- Wu, J.
|
- Kaneko, H.
- Endo, H.
- Ogata, H.
|
| Abstract |
Despite being perennially frigid, polar oceans form an ecosystem hosting high and unique biodiversity. Various organisms show different adaptive strategies in this habitat, but how viruses adapt to this environment is largely unknown. Viruses of phyla Nucleocytoviricota and Mirusviricota are groups of eukaryote-infecting large and giant DNA viruses with genomes encoding a variety of functions. Here, by leveraging the Global Ocean Eukaryotic Viral database, we investigate the biogeography and functional repertoire of these viruses at a global scale. We first confirm the existence of an ecological barrier that clearly separates polar and nonpolar viral communities, and then demonstrate that temperature drives dramatic changes in the virus–host network at the polar–nonpolar boundary. Ancestral niche reconstruction suggests that adaptation of these viruses to polar conditions has occurred repeatedly over the course of evolution, with polar-adapted viruses in the modern ocean being scattered across their phylogeny. Numerous viral genes are specifically associated with polar adaptation, although most of their homologues are not identified as polar-adaptive genes in eukaryotes. These results suggest that giant viruses adapt to cold environments by changing their functional repertoire, and this viral evolutionary strategy is distinct from the polar adaptation strategy of their hosts. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
