Genetic typing of the mouse ob mutation by PCR and restriction enzyme analysis

Exp Anim. 1997 Jan;46(1):75-8. doi: 10.1538/expanim.46.75.


A genetic typing method for the mouse obese (ob) mutation by PCR and restriction fragment length polymorphism (RFLP) analysis was developed. Three genotypes (ob/ob, ob/+ and +/+) of the ob mouse are rapidly differentiated with this assay. Since only a small biopsy specimen (tail end) is necessary for the genotyping, the ob mouse at any age is typable and can be used in subsequent breeding or research. Obese homozygotes (ob/ob) were efficiently produced by mating heterozygotes (ob/+) only, which were selected by using the PCR-RFLP assay.

MeSH terms

  • Animals
  • DNA Restriction Enzymes
  • Genotype*
  • Mice
  • Mice, Inbred C57BL / genetics
  • Mice, Obese / genetics*
  • Mutation*
  • Obesity / genetics*
  • Polymerase Chain Reaction*
  • Polymorphism, Restriction Fragment Length*


  • DNA Restriction Enzymes