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Rapid Genotyping of Animals Followed by Establishing Primary Cultures of Brain Neurons
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Non-invasive transgenic mouse genotyping using stool analysis.

R L Broome1, L Feng, Q Zhou

  • 1Department of Veterinary Medicine, VA Palo Alto Health Care System, 3801 Miranda Avenue, 154J, Palo Alto, CA 94304, USA.

FEBS Letters
|December 2, 1999
PubMed
Summary
This summary is machine-generated.

Non-invasive mouse genotyping using polymerase chain reaction (PCR) on stool samples is effective. This method avoids animal discomfort associated with traditional tail biopsies, offering a sensitive alternative for genetic research.

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Area of Science:

  • Animal Genetics
  • Molecular Biology
  • Biotechnology

Background:

  • Traditional transgenic mouse genotyping relies on invasive tail or ear biopsies, causing animal distress.
  • Developing non-invasive methods is crucial for improving animal welfare and research efficiency.

Purpose of the Study:

  • To evaluate the efficacy of polymerase chain reaction (PCR)-based genotyping using mouse stool specimens.
  • To compare the non-invasive stool method with conventional tail biopsy genotyping.

Main Methods:

  • Genotyping was performed on stool samples from three transgenic mouse lines using PCR.
  • Tail biopsies were used for comparison.
  • Detection of human keratin polypeptide 18 transgene and endogenous mouse genes was assessed.

Main Results:

  • Stool specimens were easily obtained and allowed for straightforward detection of the human transgene.
  • The method successfully identified endogenous mouse actin and keratin genes.
  • Nested PCR enhanced signal magnitude but was not essential for genotyping.

Conclusions:

  • Non-invasive genotyping using mouse stool is a reproducible, sensitive, and effective alternative to invasive tissue sampling.
  • This method can significantly improve the welfare of genetically altered mice during genotyping procedures.