Header Leaderboard Ad

Collapse

Quality triming of Solid reads in BWA

Collapse

Announcement

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

  • Quality triming of Solid reads in BWA

    Hi All

    I use BWA to map Solid reads (Genomic) to reference. Normaly I used -q parameter to trim low quality end of reads (This significantly improve mapped read %).

    I have two problems, are they bugs in BWA.
    1. BWA dosent do soft triming of Solid reads it allways dose hard trim.
    2. for Unmapped reads it trims only reads but dosent trim quality value. Which results in error (sequence and quality missmatch) when I use samtools or Picard for post processing.

    I extensively use BWA for Illumina reads and it never gave these problems. It only occure when I use BWA for Solid reads.

    Dose any one get same problem and if yes whats the solution.

  • #2
    Sounds like a bug, I think solid support for BWA was only introduced much later. Why don't you let the author know via a bug post on Sourceforge ?

    Comment


    • #3
      Please do not use -q for solid reads. Also, solid reads should not be trimmed in the same way as illumina reads -- they have quite different error profiles.

      Comment


      • #4
        lh3,

        would you care to elaborate on this topic?

        Thanks,
        Carmen

        Comment

        Latest Articles

        Collapse

        • seqadmin
          Improved Targeted Sequencing: A Comprehensive Guide to Amplicon Sequencing
          by seqadmin



          Amplicon sequencing is a targeted approach that allows researchers to investigate specific regions of the genome. This technique is routinely used in applications such as variant identification, clinical research, and infectious disease surveillance. The amplicon sequencing process begins by designing primers that flank the regions of interest. The DNA sequences are then amplified through PCR (typically multiplex PCR) to produce amplicons complementary to the targets. RNA targets...
          03-21-2023, 01:49 PM
        • seqadmin
          Targeted Sequencing: Choosing Between Hybridization Capture and Amplicon Sequencing
          by seqadmin




          Targeted sequencing is an effective way to sequence and analyze specific genomic regions of interest. This method enables researchers to focus their efforts on their desired targets, as opposed to other methods like whole genome sequencing that involve the sequencing of total DNA. Utilizing targeted sequencing is an attractive option for many researchers because it is often faster, more cost-effective, and only generates applicable data. While there are many approaches...
          03-10-2023, 05:31 AM

        ad_right_rmr

        Collapse

        News

        Collapse

        Topics Statistics Last Post
        Started by seqadmin, 03-24-2023, 02:45 PM
        0 responses
        11 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 03-22-2023, 12:26 PM
        0 responses
        14 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 03-17-2023, 12:32 PM
        0 responses
        17 views
        0 likes
        Last Post seqadmin  
        Started by seqadmin, 03-15-2023, 12:42 PM
        0 responses
        22 views
        0 likes
        Last Post seqadmin  
        Working...
        X