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Trimmomatic output files

Hi, I have used Trimmomatic to validate my fastq files, but i have got for outputs , so i wondering which one of them i should use in Tophat or for my RNA analysis ?

rna-seq

1 answer

Trimmomatic produces four files:

  • Paired forward fastq file
  • Unpaired forward fastq file
  • Paired reverse fastq file
  • Unpaired reverse fastq file

You want to use the paired forward and reverse fastq files as downstream input in your pipeline.

Thank you very much, so what are the unpaired fastq files used for ?

Additional coverage, if you need it. With RNA-seq it may cause bias to remove short-insert reads (since they are more likely to come from short transcripts), which Trimmomatic outputs as unpaired when using the default settings, I believe.

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