Contact person for this service is Liz Zepeda

Sample Quality

  • Contaminants such as high salt, poor DNA or PCR stutter can reduce data quality.
  • Samples should be properly diluted before submitting
  • TRFLPs and similar samples should be column purified before submitting 
  • Column cleaning can be done by ordering through the CQLS Web Ordering Site
  • Dilutions
    • It is important that you empirically determine what DNA concentrations are optimal for your project
    • When starting a new project, we suggest doing dilutions series test (i.e. four samples, each diluted 1:1, 1:5, 1:25, 1:100)
    • Consequences: if your samples are too concentrated, it may fail to analyze and/or the data will not be precise. High signal in one color can lead to spectral overlap into other colors, possibly leading to confusing results.
    • It is critical that your samples do not adversely affect other researchers’ data.  Samples with peak heights exceeding the spectral range of the instrument may interfere with the following injection.
    • Optimal peak height is between 500-3000 RFUs
  • Evaluate which size standard is appropriate for your samples.  It should be used across an entire experiment for accurate cross comparisons.

Dye Sets Available

  • D: FAM (blue), HEX (green), NED (yellow), ROX (red, standard)
  • G5: FAM (blue), VIC/HEX (green), NED (yellow), PET (red), LIZ (orange, standard)
  • PET and NED are only available through ABI

Size Standards

Cost of standards included in the price

  • Available standards:
    • GS500 ROX (35-500 bp)
    • GS500 LIZ (35-500 bp)

The following standards are available as a custom genotyping order. Please contact Liz Zepeda for more details:

  • GS400 ROX (50-400 bp)
  • GS1200 LIZ (50-1200 bp)
  • MapMarker ROX (35-1000 bp)
  • GeneScan 120 LIZ (15-120 bp)