Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • uselessAl
    Junior Member
    • Apr 2016
    • 4

    #1

    Qiime

    Hello there,
    I am a life sciences masters student trying to get to grips with Qiime analysis. I am currently working with data from the literature (supplementary material) to try and replicate previous studies as a way of learning. I am at the point just before OTU picking. I have overlapped the forward and reverse sequences using join_paired_ends.py and I have manually made a mapping file. I am completely lost as to how to link my sequence data to my mapping file in order to get to the next step. I have completed the Qiime tutorials but this particular issue is not addressed in the tutorials. Any help would be great.
    Cheers
    Al
  • fanli
    Senior Member
    • Jul 2014
    • 197

    #2
    The next step is to demultiplex your joined reads using a separate barcode file. The barcode sequences should match those in your mapping file.

    see http://nbviewer.jupyter.org/github/b...tutorial.ipynb
    Code:
    split_libraries_fastq.py -o slout/ -i forward_reads.fastq.gz -b barcodes.fastq.gz -m map.tsv
    you can replace forward_reads.fastq.gz with the fastq file output from join_paired_ends.py

    Comment

    • uselessAl
      Junior Member
      • Apr 2016
      • 4

      #3
      Excellent, thank you very much for your help.

      Comment

      Latest Articles

      Collapse

      • SEQadmin2
        Multiomic Liquid Biopsy: What DNA/RNA Panels Reveal That DNA Alone Can’t
        by SEQadmin2



        Tumors contain complex mixtures of cell populations that evolve in response to treatment and host-specific factors. Tissue biopsies provide only static snapshots of a tumor’s state. But what if we could follow that evolution over time using a minimally invasive technique?

        Liquid biopsies can detect tumor-derived material circulating in the bloodstream, providing a way to study treatment response, detect emerging resistance, and discover new biomarkers. Circulating
        ...
        10-14-2026, 09:55 AM
      • SEQadmin2
        New Genomics Technologies Take Aim at Long-Standing Limits
        by SEQadmin2


        Researchers using sequencing and genomics tools often have to make trade-offs. They can choose between speed or scale, short reads or long-range information, or targeted panels or a view of the whole transcriptome. New technologies that have been released this year are built to address those tough choices.

        We asked six companies the same four questions to learn about their latest products. The new technologies bring a lot to the table, including rethinking sequencing
        ...
        09-28-2026, 10:25 AM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by SEQadmin2, 10-22-2026, 11:13 AM
      0 responses
      23 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-22-2026, 10:48 AM
      0 responses
      20 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-15-2026, 10:52 AM
      0 responses
      36 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 10-14-2026, 05:39 AM
      0 responses
      42 views
      0 reactions
      Last Post SEQadmin2  
      Working...