18S reference dataset

[Nicholas_Bokulich]

@emmzee

is there anyway to use any of these two databases as reference databases in QIIME/QIIME2?

Of course! Any reference sequence database can be used with QIIME 2, provided you format the database correctly. In fact, the PR2 database was made available in QIIME 2 format a while back by another forum user:

Qiime2 compatible oceanic databases - PR2 and Phytoref

Recently I was working on a project that requires tax assignment of oceanic samples using Bayesian classifier, but the main databases we used, PR2 and Phytoref, are not in the format compatible with Qiime2, so I just went ahead modified them and trained the classifier for Qiime2 use. If anyone also need to use these databases please feel free to download.