GTDB Forum

Halobacterota vs. Halobacteriota

Hi, with the new taxonomy for archaea, among the new phyla there is this ‘Halobacteriota’ phylum.

But in the SILVA database, it seems to be reflecting the change, but the name is written as ‘Halobacterota’.

From where comes this discrepancy? It might be trivial, but I wanted to clarify before using any of the two.

Dear HHK,

Thanks for checking, the correct name is Halobacteriota
Ha.lo.bac.te.ri.o’ta. N.L. neut. n. Halobacterium, type genus of the phylum; -ota, ending to denote a phylum; N.L. pl. neut. n. Halobacteriota, the Halobacterium phylum

See also Table S13 in Rinke et al. 2021 (A standardized archaeal taxonomy for the Genome Taxonomy Database | Nature Microbiology)

I would also check with SILVA to see why they use ‘Halobacterota’. If it’s an error, they will probably be happy to learn about it and correct it in the next version of their DB.


I just got an answer from SILVA too, they say it’s a typo :sweat_smile:

Already corrected internally and to be updated in next release.

Thank you for the detailed confirmation, @chris !

@HKK great that you checked, and that SILVA will correct this error.
Let us know if you find anything else :wink: