train my database

thank you ,I want to know if I have other target/primers , I want to train my database and I want to know which "ref-seqs.qza " I can use ,in the wed Data resources — QIIME 2 2018.2.0 documentation just have the full and the 515F/806R primers , I want to know I should use which to train my database ,and if I use the silva database ,I use the 99.otus.fastas and the majority_taxonomy_7_levels.txt or consensus_taxonomy_7_levels.txt ,I don't know which is true ,but the last I find the result isn't good ,

,yes, the result just little is annotated ,and I use the greengene have many levels .so , I want to consult the team about the classifier which is the best annotation way . thank you .

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An off-topic reply has been merged into an existing topic: Classifier just class level

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