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Total read count of shotgun affected by few highly abundant sequences

I am building statistical models to analyse output from Illumina shotgun sequencing (HiSeq 4000) on stool samples (but RNA-seq data should behave similarily). The raw counts are a statistical sample ...
4
votes
1answer
90 views

At what stage of a transcriptome assembly is it better to perform read contaminant filter?

I'm trying to assemble a bivalve transcriptome. Since bivalves are filter feeders, their transcriptomes tend to be highly contaminated by bacteria, algae and whatnot. Since I pooled several ...
2
votes
1answer
119 views

How to force pilon to correct a reference with low coverage mapped reads?

I have mapped some reads to a reference and want to change SNPs in the reference to SNPs found in the reads, even at low coverage. For example, here is a screenshot of one reference in IGV that I ...
2
votes
1answer
444 views

Can I pilon-polish long reads with Illumina short reads to improve structural variant detection?

I have pacbio Sequel data at 50 x coverage for a strain of animal. I would like to find structural variants compared to the reference genome sequence. At the moment, I align my reads to the reference ...