Video talks on 16S data analysis posted.

URMAP ultra-fast read mapper posted (paper).

~20% of taxonomy annotations in SILVA and Greengenes are wrong (paper).

Taxonomy prediction is <50% accurate for 16S V4 sequences (paper).

97% OTU threshold is wrong for species, should be 99% for full-length 16S, 100% V4 (paper).

Labels and annotations

  fastx2qiime  Convert sample labels from usearch to QIIME format
  fastx_getlabels  Extract sequence labels from FASTx file
  fastx_relabel  Re-label sequences in FASTx file with prefix plus sequential number
  fastx_strip_annots  Remove usearch-style annotations (name=xxx) from FASTx file
  otutab_otus  Extract OTU names from OTU table
  otutab_samples  Extract sample names from OTU table