Genetic Polymorphism of Serum Albumin and Serum Amylase Isozyme in the Guinea Fowl

Abstract

Serum albumin and amylase isozyme patterns were analyzed in two domesticated strains (strain I and II) and a wild strain (strain III) of the Guinea fowl by means of starch gel and polyacrylamide gel electrophoresis.
Three phenotypes of serum albumin were recognized: Alb A (a fast band), B (a slow band) and AB. Of the total of 165 individuals examined of the strain I, 32 individuals (19.4% of the total number) were Alb A, 88 (53.3%) Alb AB and 45 (27.3%) Alb B. While in the strain II, all of the individuals dealt with, 75 in number, were Alb B. In the strain III 3 individuals examined were Alb A and Alb B. Mating experiments indicated that these phenotypes are controlled by autosomal codominant genes symbolyzed Alb^A and Alb^B. Gene frequencies of Alb^A and Alb^B were 0.461 and 0.539, respectively, in the strain I, 0.000 and 1.000 in II, and 0.667 and 0.333 in III.
In the isozyme patterns of serum amylase, five phenotypes were distinguished in the three strains: Amy A (a slow main band), B (a main band between A and C), C (a fast main band), AB and BC. From the results of mating experiments it was concluded that these phenotypes are controlled by three autosomal Codominant alleles, Amy^A, Amy^B and Amy^C. Frequencies of Amy^A, Amy^B, and Amy^C were 0.042, 0.958 and 0.000, respectively, in the strain I, 0.913, 0.087 and 0.000 in II, and 0.333, 0.167 and 0.500 in III.