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  • ekek
    Junior Member
    • Aug 2013
    • 1

    Need Help With Cufflinks Bug For RNA Seq (Bovine Genome)

    hi,
    I need some help with RNA Seq transcriptome assembly using cufflinks v2.1.1 with bovine genome (using deer RNA).
    I ran the following and encountered errors listed below.
    It appears that some assembled sequences map longer than the reference genome.
    I used RNASTAR to run the alignment and have checked that my reads do not align longer than the reference genome so this may be a cufflinks bug.
    I think I may be able to get around it by replacing the softclips with the following command: samtools view -h Aligned.out.bam | awk 'BEGIN {OFS="\t"} {if (substr($1,1,1)!="@") {gsub(/[0-9]*S/,"",$6); $10=$11="*"}; print }' | samtools view -bS - > Aligned.out.noS.bam
    However, I would like to ask if there any other recommended suggestions for fixing this?
    thank you.
    kdfe

    /usr/bin/time -v cufflinks \
    -p 8 \
    -N \
    -u \
    -q \
    --max-bundle-length 15000000 \
    --mask-file bosTau7_rRNAtRNAChrM.gtf \
    -b bosTau7.fa \
    -g bosTau7refFlat \
    -o /Tube01/ \
    /Aligned.out.bam

    $ You are using Cufflinks v2.1.1, which is the most recent release.
    Command line:
    [13:35:40] Loading reference annotation.
    [13:35:42] Loading reference annotation.
    [13:35:42] Inspecting reads and determining fragment length distribution.
    Processed 66538 loci.
    > Map Properties:
    > Normalized Map Mass: 24789887.85
    > Raw Map Mass: 24789887.85
    > Number of Multi-Reads: 1911419 (with 4880055 total hits)
    > Fragment Length Distribution: Empirical (learned)
    > Estimated Mean: 198.31
    > Estimated Std Dev: 56.61
    [13:44:37] Assembling transcripts and initializing abundances for multi-read correction.
    []$ Processed 66538 loci.
    [19:00:43] Loading reference annotation and sequence.
    Error (GFaSeqGet): end coordinate (42748) cannot be larger than sequence length 42715
    Error (GFaSeqGet): end coordinate (18544) cannot be larger than sequence length 18532
    Error (GFaSeqGet): end coordinate (12842) cannot be larger than sequence length 12841
    Error (GFaSeqGet): end coordinate (8427) cannot be larger than sequence length 8418
    Error (GFaSeqGet): subsequence cannot be larger than 10788
    Error getting subseq for CUFF.49431.3 (1..10799)!
    Command exited with non-zero status 1
    Command being timed:
    User time (seconds): 144650.42
    System time (seconds): 769.22
    Percent of CPU this job got: 743%
    Elapsed (wall clock) time (h:mm:ss or m:ss): 5:26:09
    Average shared text size (kbytes): 0
    Average unshared data size (kbytes): 0
    Average stack size (kbytes): 0
    Average total size (kbytes): 0
    Maximum resident set size (kbytes): 17234208
    Average resident set size (kbytes): 0
    Major (requiring I/O) page faults: 7
    Minor (reclaiming a frame) page faults: 149060165
    Voluntary context switches: 5421678
    Involuntary context switches: 4297120
    Swaps: 0
    File system inputs: 13767472
    File system outputs: 331264
    Socket messages sent: 0
    Socket messages received: 0
    Signals delivered: 0
    Page size (bytes): 4096
    Exit status: 1

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