classify_wf results, bin.bac120.summary.tsv

[luwenyi111]

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How to understand the results in the classification column of bin.bac120.summary.tsv, where some phylum names like bacillota have suffixes such as A, B, C, D? Can I group them as one category, bacillota? I would like to know why suffixes like ABCD are given at the phylum level. What is the difference between bacillota_A and bacillota?

[pchaumeil]

Hello,
You can find the answer in the FAQ.

"Taxon names above the rank of genus appended with an alphabetic suffix indicate groups that are under the following category: i) groups that are not monophyletic in the GTDB reference tree, but for which there exists alternative evidence that they are monophyletic groups; ii) groups whose placement is unstable between releases.

A best effort is made to retain the same alphabetical suffix for a taxon between GTDB releases, but this is not guaranteed."

Hope that helps,
Pierre