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Genetic control and population survey of transferrin in the Japanese quail.

Summary 
 
Transferrin types in the Japanese quail Coturnix coturnix japonica are controlled by a single autosomal locus Tf with at least two codominant alleles TfB and Tfc. The frequencies of TfB and Tfc in a commercial population of the domestic quail were 1.00 and 0.00, respectively. 
 
 
 
Previous studies demonstrated that in the domestic populations of the Japanese quail three electrophoretic patterns AB, B and BC existed in egg white conalbumin and that the electrophoretic variation of conalbumin occurred in parallel with that of serum transferrin. Furthermore, from the preliminary mating experiments the transferrin-conalbumin variation was proposed to be under the control of at least two codominant alleles 77s and Tfc at an autosomal locus (Kimura et al., 1977, 1978). 
 
 
 
The present study was designed (1) to report a large amount of family data from three generations in order to support the previously published hypothesis on genetic control of electrophoretic patterns of transferrin, and (2) to survey the gene constitution of transferrin in a commercial population of the domestic quail. 
 
 
 
Sera were added with iron, heated for 5 min at 65°C (Stratil, 1967), then were investigated by means of horizontal starch gel electrophoresis. Hydrolysed starch from Connaught Medical Laboratories, Toronto, was used. A discontinuous citrate/Tris/LiOH/borate buffer system (pH 8.0) of Ferguson & Wallace (1961) was employed. The gels were stained with Amido Black 10B.