GENETIC VARIATION OF ACID PHOSPHATASE ISOZYME IN THE JAPANESE QUAIL, COTURNIX COTURNIX JAPONICA

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Abstract
By means of agar gel electrophoresis, acid phosphatase in various organs of the Japanese quail was separated into 2 polymorphic regions (Acp-1 and Acp-2). There existed AA, AB and BB phenotypes in the slow mobility region (Acp-2) on the anode side. These phenotypes in Acp-2 region were controlled by 2 autosomal codominant alleles: Acp-2A and Acp-2B. Gene frequencies in the total population were: Acp-2A, 0.42; Acp-2B, 0.58. Acid phosphatase activity of embryo is detectable from the 5th day of incubation and increases as the days of incubation increase. From the crossing experiment, the gene controlling acid phosphatase of the embryo is the same gene that controls acid phosphatase in various organs of adult (Acp-2).