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#204 bowtie2 XS:i tag lost when --no-discordant specified

pending
nobody
bowtie (178)
5
2012-12-16
2012-05-16
Anonymous
No

bowtie2. Using -M option, second best score is reported in XS:i tag. If --no-discordant is specified, XS:i tag is not reported.

Discussion

  • Ben Langmead

    Ben Langmead - 2012-06-25

    I can't recreate this. When I try --no-discordant, XS:i flags still appear as expected. Can you supply a small example where an XS:i is suppressed spuriously?

    Best,
    Ben

     
  • Ben Langmead

    Ben Langmead - 2012-06-25
    • status: open --> pending
     
  • skatzman

    skatzman - 2012-07-27

    I can easily reproduce this and I just verified that the problem persists in beta7. Below are a few lines from my logs showing the params used. Shall I email you the fastq files (about 800K each gzipped) of 10K reads? The target is the standard hg19.

    When run with --no-discordant there are no XS:i records.
    When run without --nodiscordant, there are 5903 XS:i records.

    /Sol.

    LOG WITH --no-discordant

    running bowtie with options: --phred33 --minins 0 --maxins 700 --fr --end-to-end --sensitive --no-mixed --no-discordant --no-dovetail --no-contain -M 5 -p 4
    running bowtie from index directory: /hive/groups/wet/illumina/bowtie2_genomes/hg19/
    running bowtie on ebwt model: hg19
    applying bowtie option for SAM output format
    using bowtie options that SAVE reads that are unreported in bowtie output files
    /cluster/home/sol/mycvs/kent/src/hg/bowtie2/bowtie2/bowtie2 -x hg19 -q -t -1 /scratch/sol-15962-1343411200/input.hEBw1_fj101_00of30_10K_1.fastq -2 /scratch/sol-15962-1343411200/input.hEBw1_fj101_00of30_10K_2.fastq --phred33 --minins 0 --maxins 700 --fr --end-to-end --sensitive --no-mixed --no-discordant --no-dovetail --no-contain -M 5 -p 4 --un-conc /scratch/sol-15962-1343411200/hEBw1_fj101_00of30_10K_filtered_beta7_unmapped_%.fastq -S /scratch/sol-15962-1343411200/temp.hEBw1_fj101_00of30_10K_filtered_beta7_hg19bowtie.sam
    Warning: -M is deprecated. Use -D and -R to adjust effort instead.
    Time loading reference: 00:00:52
    Time loading forward index: 00:04:21
    Time loading mirror index: 00:03:04
    Multiseed full-index search: 00:00:03
    10000 reads; of these:
    10000 (100.00%) were paired; of these:
    1131 (11.31%) aligned concordantly 0 times
    5911 (59.11%) aligned concordantly exactly 1 time
    2958 (29.58%) aligned concordantly >1 times
    88.69% overall alignment rate

    -----------------------------------
    LOG WITHOUT --no-discordant

    running bowtie with options: --phred33 --minins 0 --maxins 700 --fr --end-to-end --sensitive --no-mixed --no-dovetail --no-contain -M 5 -p 4
    running bowtie from index directory: /hive/groups/wet/illumina/bowtie2_genomes/hg19/
    running bowtie on ebwt model: hg19
    applying bowtie option for SAM output format
    using bowtie options that SAVE reads that are unreported in bowtie output files
    /cluster/home/sol/mycvs/kent/src/hg/bowtie2/bowtie2/bowtie2 -x hg19 -q -t -1 /scratch/sol-15876-1343411158/input.hEBw1_fj101_00of30_10K_1.fastq -2 /scratch/sol-15876-1343411158/input.hEBw1_fj101_00of30_10K_2.fastq --phred33 --minins 0 --maxins 700 --fr --end-to-end --sensitive --no-mixed --no-dovetail --no-contain -M 5 -p 4 --un-conc /scratch/sol-15876-1343411158/hEBw1_fj101_00of30_10K_filtered_beta7_unmapped_%.fastq -S /scratch/sol-15876-1343411158/temp.hEBw1_fj101_00of30_10K_filtered_beta7_hg19bowtie.sam
    Warning: -M is deprecated. Use -D and -R to adjust effort instead.
    Time loading reference: 00:01:32
    Time loading forward index: 00:04:21
    Time loading mirror index: 00:03:04
    Multiseed full-index search: 00:00:03
    10000 reads; of these:
    10000 (100.00%) were paired; of these:
    1131 (11.31%) aligned concordantly 0 times
    5911 (59.11%) aligned concordantly exactly 1 time
    2958 (29.58%) aligned concordantly >1 times
    ----
    1131 pairs aligned concordantly 0 times; of these:
    4 (0.35%) aligned discordantly 1 time
    88.73% overall alignment rate

     
  • skatzman

    skatzman - 2012-07-27
    • status: pending --> open
     
  • Ben Langmead

    Ben Langmead - 2012-12-16

    Can you try again with Bowtie 2 2.0.3? I fixed a problem in that version with an interaction between --no-discordant and --no-mixed. I bet it fixes this problem.

    Best,
    Ben

     
  • Ben Langmead

    Ben Langmead - 2012-12-16
    • status: open --> pending
     

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