T. J. G. Ettema

The paper examines microbialite morphology and microbial diversity in Lake Salda, identifying distinct zones and microbial communities associated with different mineral structures.

This study characterizes a type III-B CRISPR-Cas system in Haliangium ochraceum, revealing a proteolytic cascade involving SAVED-CHAT and PCaspase that activates immune responses against RNA targets.

The paper reconstructs the evolutionary ancestry of eukaryotes by analyzing Asgard archaea phylogenetic data and infers the last common ancestor of Asgard archaea and eukaryotes as a thermophilic chemolithotroph.

This study sequenced sponge microbiomes, reconstructed chlamydial genomes, and identified their biosynthetic capabilities and ecological roles.

The paper identifies a new class of prokaryotic cytochrome b5 proteins related to eukaryotic MAPR family members and suggests a bacterial origin for PGRMC1 and CYP51A.

The paper reports a closed genome of Ca. Odinarchaeum and identifies related viruses, providing insights into Asgard archaea's virome and ecology.

This study analyzes deep-branching Rickettsiales genomes to understand the evolutionary transition from free-living to obligate host-associated lifestyles.

The paper uses single-cell genomics and phylogenomics to show Picozoa are closely related to red algae but lack plastids, challenging existing views on plastid evolution.

This study reconstructs near-complete Lokiarchaeota genomes from sediment samples using long and short read metagenomic analyses, confirming eukaryote-like features are not due to contamination.

The paper reports high abundance and diversity of novel Chlamydiae lineages in marine sediments, revealing their ecological significance and genomic diversity.

The paper identifies a new archaeal phylum, Helarchaeota, capable of anaerobic hydrocarbon oxidation, based on genomic analysis of deep-sea sediment metagenomes.

The paper reports the discovery of new NCLDV genomes from deep-sea sediments, expanding the ocean megavirome and supporting independent origins of viral gigantism.

The paper investigates the evolutionary history of diphthamide biosynthesis and EF-2 in archaea and parabasalids, revealing multiple losses of diphthamide production and functional divergence in EF-2.