I am currently interested in algae taxonomy (I am not an expert in the field).
I retrieved the taxonomy of my sequences with their NCBI access number via the taxonkit software (https://bioinf.shenwei.me/taxonkit/usage/).
I noticed that I get Cryptophyta at the Class rank level.
For me -phyta actually corresponds more to the phylum rank.
I checked on NCBI site and is actually tidy in Class rank ( https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=3027&lvl=3&lin=f&keep=1&srchmode=1&unlock) but for example on the algaebase database (http://www.algaebase.org/browse/taxonomy/detail/?taxonid=Xafa8c1d30aa53593), Cryptophyta is classified as Phylum.
Can you tell me why Cryptophyta is rank at the Class level on NCBI and not to the Phylum level ?
Conversely, I retrieve taxonomy with, for example, Phaeophyceae ranked at Phylum level (https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&id=2870&lvl=3&lin=f&keep=1&srchmode= 1 & unlock) while it is normally a Class on algaebase (http://www.algaebase.org/browse/taxonomy/detail/?taxonid=L8055ac0a94735f3e).
Do you have ideas being considered? I am very interested !
Thank you very much in advance for your answers.
Best regards
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christophe.djemiel •
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I think this problem might be better discussed at some biology stackexchange forum?
Also, NCBI taxonomy has the following disclaimer on each taxon page: "Disclaimer: The NCBI taxonomy database is not an authoritative source for nomenclature or classification - please consult the relevant scientific literature for the most reliable information."
Thank you very much for your answer. Indeed, I will ask the question on this forum. I quite agree to check in the literature, however when the problem is at the level of the taxonomic rank of the Phylum and on fairly well described groups I thought that there was a certain uniformity especially that in Federhen 2012 (The NCBI Taxonomy database), NBCI indicates that they make a link for algae with the taxonomy of the algaebase database ... that's why I ask myself these questions ...