and sinks is an important endeavour in microbiology, biogeochemistry, and climate
sciences,. For decades, it was thought that methanogenesis, the ability to conserve energy
coupled to methane production, was taxonomically restricted to a metabolically specialized
group of archaea, the Euryarchaeota. The discovery of marker genes for anaerobic alkane
cycling in metagenome-assembled genomes obtained from diverse habitats has led to the …