OTU clustering tool outputs

The OTU clustering tool produces several outputs: a sequence list of the OTU centroids, and two abundance tables with the newly created OTUs or the chimeras. Each table gives abundance of the OTU or chimeras at each site as well as the total abundance for all samples. Note that if the input contains paired-end sequences, each pair is counted as one read.

In the OTU merge report - generated if the input reads were paired - the following statistics are given for each sequence list input in the tool: a summary of merged and non-merged sequences, an alignment score distribution and a merged pairs length distribution.

The tool also produces a report (figure 5.5).

Image otureport
Figure 5.5: Example of report produced by the OTU clustering tool.

The content of the report is stated below.