Polymorphism at the glucosephosphate isomerase locus in the dog

Abstract
A polymorphism of the enzyme glucosephosphate isomerase (GPI) in canine red blood cells is reported. This polymorphism was detected by horizontal starch gel electrophoresis utilizing a tris-EDTA-borate buffer system of pH 8.0. Four out of 92 dogs examined appeared to be heterozygous at this locus.