I'm a beginner. Some of my annotation results contained a large number of blank archaea (even more than 70% in some samples). And only to the domain level. Just like this Fig.
Did the sample itself contain unknown archaea or was there a problem with the annotation or processing of the data?
Hi @Nico1as, welcome to !
These related threads should help answer your question:
@SoilRotifer Thanks a lot! It really helps.