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Rectal Swab DNA Collection Protocol for PCR Genotyping in Rats.

Audrey E Kaye1, Jacob W Proctor-Bonbright1, Jai Y Yu1,2,3

  • 1Neuroscience Institute, University of Chicago.

Biorxiv : the Preprint Server for Biology
|March 18, 2024
PubMed
Summary
This summary is machine-generated.

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Non-invasive rectal swabbing offers a humane alternative for collecting DNA from laboratory animals. This method provides reliable genotyping results comparable to traditional tissue sampling, enabling faster research outcomes.

Area of Science:

  • Animal research ethics
  • Molecular biology techniques
  • Laboratory animal science

Background:

  • Standard DNA collection methods for laboratory animal genotyping involve tissue amputation, causing animal distress and injury.
  • A validated, non-invasive protocol for rectal swabbing to obtain DNA for genotyping is currently lacking.

Conclusions:

  • Rectal swabbing is a viable, non-invasive method for DNA collection in laboratory animals.
  • The developed protocol allows for rapid (3-5 hours for a litter), repeatable, and humane genotyping using standard commercial PCR reagents.
Keywords:
DNA collectionDNA collection protocolPCR analysisgenotypingnon-invasivepolymerase chain reactionsrectal swabrectum swabsamplingtransgenic rats

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