Dear GTDB Team and Community,
I am currently working on expanding the MetaPhlAn 4 database with custom SGBs. I have annotated my genomes using GTDB-Tk R226. However, the current MetaPhlAn 4 taxonomy is built upon GTDB releases R220.
To avoid taxonomic splitting due to synonym changes (e.g., handling the Firmicutes vs. Bacillota transition or other Phylum/Class level reclassifications), I need to harmonize my R226 annotations with the R220 taxonomy structure.
Could you please advise if there is a recommended way to retrieve a list of taxon name changes between Release 220 and Release 226?
Specifically, I am looking for:
- A changelog or mapping file that highlights reclassified taxa (renaming, merging, or splitting) between these two versions.
- Or, advice on the best practice to “back-map” R226 taxonomies to R220 for backward compatibility.
Thank you very much for your time!
Best regards,
Qiaofan Li