Unconfigured Ad

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts
  • jsun529
    Member
    • Apr 2009
    • 52

    SOLiD

    Hi,

    When check the unique.coverage.csv file of the genes, the average coverage is around 5000, how to link this to the actual X coverage that we usual say about NGS, for NGS it only ranges to ~ 100X , is that right ?
    Does this have to take the length of the reference sequence into consideration?

    Thanks,
  • westerman
    Rick Westerman
    • Jun 2008
    • 1104

    #2
    When check the unique.coverage.csv file of the genes, the average coverage is around 5000, how to link this to the actual X coverage that we usual say about NGS, for NGS it only ranges to ~ 100X , is that right ?
    Does this have to take the length of the reference sequence into consideration?
    I don't see how the length of the reference should make a difference. If indeed you are averaging the counts (i.e., each line) within the unique.coverage.csv file and coming up with an average of 5000 reads (per base) then you have an incredibly high coverage. That is what you report. I am not sure where you are getting that the "usual" coverage for NGS is 100x. That is certainly a nice coverage level to have however my 'usual' (with large eukaryote genomes) is below that level.

    Comment

    • jsun529
      Member
      • Apr 2009
      • 52

      #3
      Thanks. Since we are doing targeted resequencing, for the unique.coverage.csv file, most of the position have 0 coverage, i am not sure if it is better to take the 0 out since we do targeted resequencing(only exons+/- small fraction) to do the average, or count it in if I include the 0 coverages then it will be around ~200X. Thanks.

      Comment

      Latest Articles

      Collapse

      • SEQadmin2
        Nine Things a Sample Prep Scientist Thinks About Before Sequencing
        by SEQadmin2


        I’m not a sequencing expert. I’m a purification scientist who uses NGS to evaluate workflows my group develops. With this perspective, we think about the sample first and the NGS workflow second. The sequencer is an exceptionally honest reporter, but it can only report on what you give it, so whether you get clean, interpretable data from an NGS workflow is largely determined before you begin.

        Here are nine questions we think about, in roughly the order they matter, before...
        06-18-2026, 07:11 AM
      • SEQadmin2
        From Collection to Sequencing: Why Sample Preparation and Preservation Define Sequencing Data
        by SEQadmin2


        Data variability is still an issue in sequencing technologies despite the advances in reproducibility and accuracy of these platforms. But the problem does not originate in the sequencing itself, but in the previous steps, before the sample reaches the sequencer.


        The first step is collection, followed by preservation and sample preparation for analysis. Most scientists overlook those steps, but not being careful might just be skewing the experiment’s results.
        ...
        06-02-2026, 10:05 AM

      ad_right_rmr

      Collapse

      News

      Collapse

      Topics Statistics Last Post
      Started by SEQadmin2, 06-17-2026, 06:09 AM
      0 responses
      41 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-09-2026, 11:58 AM
      0 responses
      102 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-05-2026, 10:09 AM
      0 responses
      123 views
      0 reactions
      Last Post SEQadmin2  
      Started by SEQadmin2, 06-04-2026, 08:59 AM
      0 responses
      114 views
      0 reactions
      Last Post SEQadmin2  
      Working...