Chimera Slayer issue

When I try to run the Chimera Slayer, the program is saying that the sample sequence length is not the same length as the template sequences.

How can I go about making sure those are the same sequence length?

Here’s the summary.seqs for some of the files I have, and I am using the Silva.gold.align as the template for the Chimera Slayer.




mothur > summary.seqs(fasta=baileygood.unique.good.filter.unique.fasta) Start End NBases Ambigs Polymer Minimum: 1 1191 422 0 4 2.5%-tile: 1 1191 444 0 4 25%-tile: 1 1191 484 0 5 Median: 1 1191 489 0 5 75%-tile: 1 1191 500 0 5 97.5%-tile: 1 1197 510 0 6 Maximum: 1 1321 586 0 7 # of Seqs: 11464

Output File Name:
baileygood.unique.good.filter.unique.fasta.summary


mothur > summary.seqs(fasta=baileygood.unique.good.filter.fasta)

Start End NBases Ambigs Polymer
Minimum: 1 1191 422 0 4
2.5%-tile: 1 1191 444 0 4
25%-tile: 1 1191 484 0 5
Median: 1 1191 489 0 5
75%-tile: 1 1191 500 0 5
97.5%-tile: 1 1197 510 0 6
Maximum: 1 1321 586 0 7

of Seqs: 11517

Output File Name:
baileygood.unique.good.filter.fasta.summary


mothur > summary.seqs(fasta=baileygood.unique.good.align)

Start End NBases Ambigs Polymer
Minimum: 1044 13862 422 0 4
2.5%-tile: 1044 13862 444 0 4
25%-tile: 1044 13862 484 0 5
Median: 1044 13862 489 0 5
75%-tile: 1044 13862 500 0 5
97.5%-tile: 1044 13875 510 0 6
Maximum: 1044 21276 586 0 7

of Seqs: 11517

Output File Name:
baileygood.unique.good.align.summary

Jeff,
You’d need to filter the silva.gold.align file with baileygood.unique.good.align. For example…

filter.seqs(fasta=silva.gold.align-baileygood.unique.good.align, vertical=T, trump=.)
chimera.slayer(reference=silva.gold.filter.fasta, fasta=baileygood.unique.good.filter.fasta)

Pat