Clumpify then Salmon?
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Entering edit mode
21 days ago
JMB ▴ 10

Hi,

I have a dataset that I would like to analyze using Salmon. The data is paired-end Illumina and has a very high duplication rate of 90-95% as determined by Markduplicates in Picard (small genome, oversequenced). I would like to remove duplicates using clumpify before Salmon. I know clumpify will do some sorting to reduce file sizes and I just want to make sure this will not interfere with Salmon, which I know does not want data sorted by coordinates. I'm assuming clumpify is not sorting this way, but just want to make sure I'm not missing anything. Thanks!

Salmon RNA-seq Clumpify • 253 views
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Entering edit mode
21 days ago
GenoMax 139k

No, clumpify is not going to sort based on co-ordinates. It only looks at the sequence. It is an alignment-free dedupe program. Re-ordering of the clumps is false by default. It is only useful for compression when turned on.

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