Unconfigured Ad

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • SDPA_Pet
    Senior Member
    • Apr 2013
    • 222

    #1

    Illumina MiSeq 16S sequencing EMP protocol questions

    Hi, I'm going to do some 16S barcoded PCR following the EMP standard protocol here (http://www.earthmicrobiome.org/proto...standards/16s/).

    The PCR potocol seems straight-forward. However, I am confused about what they say this on the website -- " For running these libraries on the MiSeq and HiSeq, please make sure you read the supplementary methods of Caporaso et al. (2012). You will need to make your sample more complex by adding 5–10% PhiX to your run."

    I have a few questions:

    1>I google the Caporaso paper and it seems PhiX is some kind of control?

    2> At which step, should I add this PhiX? Do I have to add it or it is optional? Do I need to add this into my PCR master mix? -- add it in to every samples?

    3>5-10% PhiX is the final concentration of PhiX or the volume of concentration the original PhiX?

    4> Where can I order the PhiX or Is this a kit?
  • ikripp
    Member
    • Jan 2018
    • 19

    #2
    PhiX is the control spike in from Illumina, which you can order from them. It is recommended for use with low diversity libraries and is added following the library denature and dilution. More info can be found here: http://sapac.support.illumina.com/co...5039740-10.pdf

    Comment

    Latest Articles

    Collapse

    • SEQadmin2
      16S/ITS Profiling vs. Shotgun Metagenomics: What Changes in Your Workflow?
      by SEQadmin2




      NGS has revolutionized clinical microbiology by offering new ways to identify and surveil pathogens without prior knowledge of the target. One popular approach is 16S rRNA and ITS amplicon sequencing, which targets specific microbial markers. But studies are increasingly incorporating shotgun metagenomics, a technique that sequences all DNA from a sample without targeting specific microbial markers. This approach allows more detailed taxonomic classification, detection...
      10-30-2026, 06:46 AM
    • SEQadmin2
      Multiomic Liquid Biopsy: What DNA/RNA Panels Reveal That DNA Alone Can’t
      by SEQadmin2



      Tumors contain complex mixtures of cell populations that evolve in response to treatment and host-specific factors. Tissue biopsies provide only static snapshots of a tumor’s state. But what if we could follow that evolution over time using a minimally invasive technique?

      Liquid biopsies can detect tumor-derived material circulating in the bloodstream, providing a way to study treatment response, detect emerging resistance, and discover new biomarkers. Circulating
      ...
      10-14-2026, 09:55 AM

    ad_right_rmr

    Collapse

    News

    Collapse

    Topics Statistics Last Post
    Started by SEQadmin2, 10-28-2026, 09:57 AM
    0 responses
    33 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 10-28-2026, 09:51 AM
    0 responses
    22 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 10-22-2026, 11:13 AM
    0 responses
    72 views
    0 reactions
    Last Post SEQadmin2  
    Started by SEQadmin2, 10-22-2026, 10:48 AM
    0 responses
    48 views
    0 reactions
    Last Post SEQadmin2  
    Working...