Genetic variants of liver and pancreas mannosephosphate isomerase in the Guinea fowl

Liver and pancreas mannosephosphate isomerase of the guinea fowl was examined electrophoretically. Three electrophoretic patterns, designated as A, AB and B, were observed in a closed population of the species (Galor strain). Mating experiments indicated that these phenotypes are controlled by autosomal codominant genes, which are symbolyzed as MPI-IA and MPI- IB. Of a total of 161 individuals examined, 59, 82 and 20 were classified as A, AB and B, respectively.