Major oceanic 16S/18S databases in qiime2 format
qiime feature-classifier extract-reads
--i-sequences Data/PR2/PR2_for_qiime2.qza
--p-f-primer TTGTACACACCGCCC
--p-r-primer CCTTCYGCAGGTTCACCTAC
--o-reads Data/PR2/PR2_for_qiime2_primer_trimmed.qza
qiime feature-classifier fit-classifier-naive-bayes
--i-reference-reads Data/PR2/PR2_for_qiime2.qza
--i-reference-taxonomy Data/PR2/PR2_taxonomy.qza
--o-classifier classifier/PR2_classifier.qza