Output file, UPARSE tabbed format. Supported by
uparse_ref. There are five or six fields, as shown in
the following table.
For cluster_otus, this field is otu, match or chimera.
otu: New OTU. Sequence is <97% to existing OTU and is not
match: Assigned to existing OTU (>= 97% match).
chimera: Sequence is chimeric.
For uparse_ref, it is perfect, good, noisy, chimera or other.
perfect: 100% match to a reference sequence.
good: >=99% match to reference sequence.
noisy: >= 97% match to reference sequence
chimera: matches chimeric model constructed from reference
other: < 97% match and not chimeric.
identity between the query sequence and the top hit
in the reference database. With cluster_otus, the reference database is the
current set of OTUs. If no hit was found, this field is set to *,
||Percent identity between
the query sequence and the maximum parsimony model.
If no model is made, e.g. because the database is empty, then this field is set
||OTU label(s). If the
model is chimeric, then the labels and start-end segment coordinates are given.
Otherwise, the label of the reference sequence. For cluster_otus, this will be
the label of an existing OTU. If no model is constructed, this field is set to
* * OTU_1
Even1.145;size=21; otu *
Even1.1733;size=20; match 99.5 *
Even1.942;size=20; chimera 94.0 100.0
Even1.1821;size=20; match 98.5 *
Even1.1415;size=19; match 97.0 *