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A closed Candidatus Odinarchaeum genome exposes Asgard archaeal viruses

View ORCID ProfileDaniel Tamarit, View ORCID ProfileEva F. Caceres, View ORCID ProfileMart Krupovic, View ORCID ProfileReindert Nijland, View ORCID ProfileLaura Eme, Nicholas P. Robinson, View ORCID ProfileThijs J. G. Ettema
doi: https://doi.org/10.1101/2021.09.01.458545
Daniel Tamarit
1Laboratory of Microbiology, Wageningen University, 6708WE Wageningen, The Netherlands
2Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, SE-75007 Uppsala, Sweden
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Eva F. Caceres
3Department of Cell and Molecular Biology, Science for Life Laboratory, Uppsala University, 75123 Uppsala, Sweden
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Mart Krupovic
4Archaeal Virology Unit, Institut Pasteur, Paris, France
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Reindert Nijland
5Marine Animal Ecology Group, Wageningen University, 6708WE Wageningen, The Netherlands
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Laura Eme
6Laboratoire Écologie, Systématique, Évolution, CNRS, Université Paris-Sud, Université Paris-Saclay, AgroParisTech, 91400 Orsay, France
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Nicholas P. Robinson
7Division of Biomedical and Life Sciences, Faculty of Health and Medicine, Lancaster University, Lancaster LA1 4YG, United Kingdom
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Thijs J. G. Ettema
1Laboratory of Microbiology, Wageningen University, 6708WE Wageningen, The Netherlands
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  • For correspondence: thijs.ettema@wur.nl
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Abstract

Asgard archaea have recently been identified as the closest archaeal relatives of eukaryotes. Their ecology remains enigmatic, and their virome, completely unknown. Here, we describe the closed genome of Ca. Odinarchaeum yellowstonii LCB_4, and, from this, obtain novel CRISPR arrays with spacer targets to several viral contigs. We find related viruses in sequence data from thermophilic environments and in the genomes of diverse prokaryotes, including other Asgard archaea. These novel viruses open research avenues into the ecology and evolution of Asgard archaea.

Competing Interest Statement

The authors have declared no competing interest.

Copyright 
The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.
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Posted September 01, 2021.
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A closed Candidatus Odinarchaeum genome exposes Asgard archaeal viruses
Daniel Tamarit, Eva F. Caceres, Mart Krupovic, Reindert Nijland, Laura Eme, Nicholas P. Robinson, Thijs J. G. Ettema
bioRxiv 2021.09.01.458545; doi: https://doi.org/10.1101/2021.09.01.458545
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A closed Candidatus Odinarchaeum genome exposes Asgard archaeal viruses
Daniel Tamarit, Eva F. Caceres, Mart Krupovic, Reindert Nijland, Laura Eme, Nicholas P. Robinson, Thijs J. G. Ettema
bioRxiv 2021.09.01.458545; doi: https://doi.org/10.1101/2021.09.01.458545

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