Nanohaloarchaea is a clade of diminutive archaea with small

genomes In the fields of molecular biology and genetics, a genome is all the genetic information of an organism. It consists of nucleotide sequences of DNA (or RNA in RNA viruses). The nuclear genome includes protein-coding genes and non-coding g ...

and limited metabolic capabilities, belonging to the

DPANN DPANN is a superphylum of Archaea first proposed in 2013. Many members show novel signs of horizontal gene transfer from other domains of life. They are known as nanoarchaea or ultra-small archaea due to their smaller size (nanometric) compared t ...

archaea. They are ubiquitous in

hypersaline A hypersaline lake is a landlocked body of water that contains significant concentrations of sodium chloride, brines, and other salts, with saline levels surpassing that of ocean water (3.5%, i.e. ). Specific microbial species can thrive in hi ...

habitats, which they share with the extremely

halophilic The halophiles, named after the Greek word for "salt-loving", are extremophiles that thrive in high salt concentrations. While most halophiles are classified into the domain Archaea, there are also bacterial halophiles and some eukaryotic species, ...

haloarchaea Haloarchaea (halophilic archaea, halophilic archaebacteria, halobacteria) are a class of the Euryarchaeota, found in water saturated or nearly saturated with salt. Halobacteria are now recognized as archaea rather than bacteria and are one of t ...

. Nanohaloarchaea were first identified from metagenomic data as a class of uncultivated halophilic archaea composed of 6 clades and were subsequently placed in the phylum Nanohaloarchaeota within the Diapherotrites, Parvarchaeota, Aenigmarchaeota, Nanoarchaeota, Nanohaloarchaeota (

) superphylum. However the phylogenetic position of nanohaloarchaea is still highly debated, being alternatively proposed as the sister-lineage of haloarchaea or a member of the DPANN super-phylum. The lineage has since been identified in data from a range of hypersaline environments including: Australian thalassohaline lake, Spanish saltern, Russian soda brine, Californian saltern, and Chilean halite

Taxonomy

The currently accepted taxonomy is based on the

List of Prokaryotic names with Standing in Nomenclature List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the nomenclature, naming and Taxonomy (biology), taxonomy of prokaryotes, following the taxonomy requirements and rulings of the In ...

(LPSN) and

National Center for Biotechnology Information The National Center for Biotechnology Information (NCBI) is part of the United States National Library of Medicine (NLM), a branch of the National Institutes of Health (NIH). It is approved and funded by the government of the United States. The ...

(NCBI). Phylum "Nanohalarchaeota" corrig. Rinke et al. 2013 * Class "Nanohalarchaeia" corrig. Narasingarao et al. 2012 ** Order "Nanohalarchaeales" *** Family "Nanohalarchaeaceae" **** Genus ?"''Candidatus'' Nanohalarchaeum" corrig. Hamm et al. 2019 ***** "''Ca.'' N. antarcticum" corrig. Hamm et al. 2019 * Class "Nanohalobiia" corrig. La Cono et al. 2020 ** Order "Nanohalobiales" La Cono et al. 2020 Rinke_et_al._2020.html" ;"title="Nanosalinales" Rinke et al. 2020">Nanosalinales" Rinke et al. 2020*** Family "Nanohalobiaceae" La Cono et al. 2020 Rinke_et_al._2020.html" ;"title="Nanosalinaceae" Rinke et al. 2020">Nanosalinaceae" Rinke et al. 2020**** Genus ?"''Candidatus'' Haloredivivus" Ghai et al. 2011 **** Genus ?"''Candidatus'' Nanopetraeus" corrig. Crits‐Christoph et al. 2016 Nanopetramus" (sic)**** Genus "''Candidatus'' Nanohalobium" La Cono et al. 2020 ***** "''Ca.'' N. constans" La Cono et al. 2020 **** Genus "''Candidatus'' Nanosalina" Narasingarao et al. 2012 **** Genus "''Candidatus'' Nanosalinicola" corrig. Narasingarao et al. 2012 Nanosalinarum" (sic)

Taxonomy

References

Further reading