Abstract
10 inbred strains of mice including NOD and NON were identified by discriminant and canonical discriminant analysis of the mandible measurements. The number of erroneous discriminations was 0·5% (1/199) for the females and 0% for males (0/232). In canonical discriminant analysis (discriminant analysis with reduction of dimensionality), NOD and NON inbred strains were separately located on 2-dimensional planes, Z1-Z2, Z1-Z3, and Z2-Z3.
These results clearly indicate that the genetic constitution of NOD and NON differs, although they have been established from a common ancestor ICR mouse. Causes of divergence between NOD and NON mice arc discussed.