Hi @DrL,
I'd suggest the following:
-
Read through the tutorial on qiime rescript edit-taxonomy .... This should give you a few ideas on how you can edit / truncate your taxonomy to make them more amenable to figure generation.
-
Use this modified taxonomy file as the input to the
qiime taxa collapse ...
command. Keep in mind you may need to alter--p-level
to match the length of your new taxonomy strings. -
Follow the rest of your commands as you already have them.
Let us know if this works!