Announcement

Collapse
No announcement yet.
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • Tophat Does not Work with SOLiD Reads

    I have been trying for several weeks to run Tophat on SOLiD reads but I got the same error message every time. While I searched a lot of forums and related questions but could not find a solution.

    a sample of my data is:
    =====
    @SRR179591.60.1 mendel_20110320_FRAG_BC_Ryan_RNA_Seq_2_70_490_F3 length=50
    T02213232.20202212300333
    +SRR179591.60.1 mendel_20110320_FRAG_BC_Ryan_RNA_Seq_2_70_490_F3 length=50
    !<=B?@=7B!8>;@BB<:@-<259
    =====

    I use Tophat v2.0.13 and the error message that I got is:
    =====
    [2015-01-22 11:01:43] Beginning TopHat run (v2.0.13)
    -----------------------------------------------
    [2015-01-22 11:01:43] Checking for Bowtie
    Bowtie version: 1.1.1.0
    [2015-01-22 11:01:43] Checking for Bowtie index files (genome)..
    [2015-01-22 11:01:43] Checking for reference FASTA file
    [2015-01-22 11:01:43] Generating SAM header for HumanGenome/Ensemble78/HumanIndexedGenome/Bowtie1ColorSpace//Human
    Warning: found a read < 20bp in SRR179592_Trimmed.fastq
    [2015-01-22 11:02:06] Reading known junctions from GTF file
    [2015-01-22 11:02:55] Preparing reads
    left reads: min. length=19, max. length=50, 20533939 kept reads (147 discarded)
    Warning: short reads (<20bp) will make TopHat quite slow and take large amount of memory because they are likely to be mapped in too many places
    [2015-01-22 11:08:48] Building transcriptome data files TophatAlignment/tmp/Homo_sapiens.GRCh38.78
    [2015-01-22 11:10:07] Building Bowtie index from Homo_sapiens.GRCh38.78.fa
    [2015-01-22 11:44:10] Mapping left_kept_reads to transcriptome Homo_sapiens.GRCh38.78 with Bowtie
    [FAILED]
    Error running bowtie:
    Too few quality values for read: 1T0B
    are you sure this is a FASTQ-int file?
    terminate called after throwing an instance of 'int'
    ========

    The command that I used to run Tophat is:
    =====
    tophat --color --bowtie1 -o out -r 500 --mate-std-dev 500 --no-mixed -p 16 -G Homo_sapiens.GRCh38.78.gtf Bowtie1ColorSpace/Human Reads_Trimmed.fastq
    =====
    Last edited by Fernas; 01-30-2015, 03:46 AM.

  • #2
    Re: Tophat Does not Work with SOLiD Reads

    I have same problem.
    I added following option as shown in Tophat manual (http://ccb.jhu.edu/software/tophat/manual.shtml)
    --library-type secondstrand

    This option doesn't work as well.
    Last edited by jcjeong; 06-09-2015, 10:21 AM.

    Comment


    • #3
      I have the same problem. Were you ever able to find a solution?

      Comment


      • #4
        AFAIK, only Tophat version 1 is capable of aligning colorspace reads.
        You need to download and run a much older version than (v2.0.13) from http://ccb.jhu.edu/software/tophat/downloads/

        Comment


        • #5
          Originally posted by Michael.Ante View Post
          AFAIK, only Tophat version 1 is capable of aligning colorspace reads.
          You need to download and run a much older version than (v2.0.13) from http://ccb.jhu.edu/software/tophat/downloads/
          I know this is an old post but in case anyone need it I will post.
          You can use TopHat2 but with --bowtie1 parameter. This will use bowtie1 to map the color reads (bowtie2 is not able to do it), so there is no need to download an old TopHat version.

          Comment

          Latest Articles

          Collapse

          • seqadmin
            Advanced Methods for the Detection of Infectious Disease
            by seqadmin




            The recent pandemic caused worldwide health, economic, and social disruptions with its reverberations still felt today. A key takeaway from this event is the need for accurate and accessible tools for detecting and tracking infectious diseases. Timely identification is essential for early intervention, managing outbreaks, and preventing their spread. This article reviews several valuable tools employed in the detection and surveillance of infectious diseases.
            ...
            11-27-2023, 01:15 PM
          • seqadmin
            Strategies for Investigating the Microbiome
            by seqadmin




            Microbiome research has led to the discovery of important connections to human and environmental health. Sequencing has become a core investigational tool in microbiome research, a subject that we covered during a recent webinar. Our expert speakers shared a number of advancements including improved experimental workflows, research involving transmission dynamics, and invaluable analysis resources. This article recaps their informative presentations, offering insights...
            11-09-2023, 07:02 AM

          ad_right_rmr

          Collapse

          News

          Collapse

          Topics Statistics Last Post
          Started by seqadmin, Today, 09:55 AM
          0 responses
          9 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, Yesterday, 10:48 AM
          0 responses
          17 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 11-29-2023, 08:26 AM
          0 responses
          13 views
          0 likes
          Last Post seqadmin  
          Started by seqadmin, 11-29-2023, 08:12 AM
          0 responses
          14 views
          0 likes
          Last Post seqadmin  
          Working...
          X