We have discovered an issue with the recently posted Silva 119 Naive Bayes 515F/806R taxonomy classifier. Due to an error in pre-processing, the trimming of the reference sequences to the 515F/806R region was performed incorrectly and in many cases the trimmed sequences only partially overlap this region of the gene sequence.
The classifier is not expected to produce incorrect results, but rather will not perform as well as it should, or as well as the Silva 119 Naive Bayes full-length taxonomic classifier.
The UUID of the affected artifact is
208b55a4-05e2-412b-95b4-a3c7404094d6. You should check the UUID of your classifier artifact to determine if you are using this artifact. This can be done by viewing the artifact at https://view.qiime2.org, or using the following QIIME 2 command on the command line interface:
qiime tools peek silva-119-99-515-806-nb-classifier.qza
(Note that the filename
silva-119-99-515-806-nb-classifier.qza can not reliably indicate if you’re using the affected artifact. The only way to be sure is by checking its UUID.)
We are in the process of rebuilding the Silva 119 Naive Bayes 515F/806R taxonomy classifier and will post an announcement when this artifact is ready. In the meantime, we recommend using the Silva 119 Naive Bayes full-length taxonomic classifier. Any analyses that were run with the retracted Silva 119 Naive Bayes 515F/806R taxonomy classifier should be re-run with the Silva 119 Naive Bayes full-length taxonomic classifier.
Sorry for the inconvenience!