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120,000 new RNA virus species discovered
by mining the SRA (
paper
).
Syncmers are better than minimizers (
paper
).
Video talks
on 16S data analysis posted.
URMAP
ultra-fast read mapper (
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
).
USEARCH
Download 32-bit
Buy 64-bit
New in v11
Tech support
Documentation
Commands
Topics
OTU analysis
Sequence search
Sequence clustering
Taxonomy
Diversity
Octave plots
Machine learning
Chimeras
Read quality
Paired reads
OTU errors and biases
Publications
Documentation
Getting started
What's new in v11
Installation
Command line
Downloads
Command reference
All commands
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Parameters and options
Output files for search and clustering
Accept options (which hits to report)
Termination options (when to stop searching)
Alignment heuristics
Alignment parameters (gap penalties etc.)
Sequence database index parameters
OTU and denoising analysis for 16S, ITS etc.
Recommended procedures
Example scripts and tutorials
Errors and biases in amplicon sequencing
Old manuals
Version 10
Version 9.2
Version 8.1
Version 7
Version 6
Support
Technical support
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Publications
Papers and how to cite USEARCH