Gubry-Rangin, Cécile

Publications (3)

Recovery of Lutacidiplasmatales archaeal order genomes suggests convergent evolution in Thermoplasmatota

Sheridan et al. (2022). Nature Communications 13 (1)
Names (4)
“Lutacidiplasmataceae” “Lutacidiplasma” “Lutacidiplasma silvani” “Lutacidiplasmatales”
General Biochemistry, Genetics and Molecular Biology General Chemistry General Physics and Astronomy Multidisciplinary
AbstractThe Terrestrial Miscellaneous Euryarchaeota Group has been identified in various environments, and the single genome investigated thus far suggests that these archaea are anaerobic sulfite reducers. We assemble 35 new genomes from this group that, based on genome analysis, appear to possess aerobic and facultative anaerobic lifestyles and may oxidise rather than reduce sulfite. We propose naming this order (representing 16 genera) “Lutacidiplasmatales” due to their occurrence in various acidic environments and placement within the phylum Thermoplasmatota. Phylum-level analysis reveals that Thermoplasmatota evolution had been punctuated by several periods of high levels of novel gene family acquisition. Several essential metabolisms, such as aerobic respiration and acid tolerance, were likely acquired independently by divergent lineages through convergent evolution rather than inherited from a common ancestor. Ultimately, this study describes the terrestrially prevalent Lutacidiciplasmatales and highlights convergent evolution as an important driving force in the evolution of archaeal lineages.

Genome Sequence of “ Candidatus Nitrosocosmicus franklandus” C13, a Terrestrial Ammonia-Oxidizing Archaeon

Nicol et al. (2019). Microbiology Resource Announcements 8 (40)
Names (1)
Ca. Nitrosocosmicus franklandus
Genetics Immunology and Microbiology (miscellaneous) Molecular Biology
“ Candidatus Nitrosocosmicus franklandus” C13 is an ammonia-oxidizing archaeon (AOA) isolated from soil. Its complete genome is 2.84 Mb and possesses predicted AOA metabolic pathways for energy generation and carbon dioxide fixation but no typical surface layer (S-layer) proteins, only one ammonium transporter, and divergent A-type ATP synthase genes.