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Research article - Peer-reviewed, 2022

A closed Candidatus Odinarchaeum chromosome exposes Asgard archaeal viruses

Tamarit, Daniel; Caceres, Eva F.; Krupovic, Mart; Nijland, Reindert; Eme, Laura; Robinson, Nicholas P.; Ettema, Thijs J. G.


Asgard archaea have recently been identified as the closest archaeal relatives of eukaryotes. Their ecology, and particularly their virome, remain enigmatic. We reassembled and closed the chromosome of Candidatus Odinarchaeum yellowstonii LCB_4, through long-range PCR, revealing CRISPR spacers targeting viral contigs. We found related viruses in the genomes of diverse prokaryotes from geothermal environments, including other Asgard archaea. These viruses open research avenues into the ecology and evolution of Asgard archaea.

Published in

Nature microbiology
2022, volume: 7, number: 7, pages: 948-952

Authors' information

Tamarit Chuliá, Daniel
Wageningen University and Research
Tamarit Chuliá, Daniel
Swedish University of Agricultural Sciences, Department of Aquatic Sciences and Assessment
Caceres, Eva F.
Uppsala University
Krupovic, Mart
Le Reseau International des Instituts Pasteur (RIIP)
Nijland, Reindert
Wageningen University and Research
Eme, Laura
Universite Paris Saclay
Robinson, Nicholas P.
Lancaster University
Ettema, Thijs J. G.
Wageningen University and Research

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