抄録
The “Ph” agglutinogen was detected in red cells from egg-laying females but not in those from mature males in the BM-C strain. In the tests for the agglutinability of red cells in egg-laying females, the agglutinable strain (BM-C) and the non-agglutinable strain (WL-M) were found. In regard to the agglutinability of embryonic red cells, “Ph” agglutinogen was found in red cells from all embryos tested regardless of sex and strain and it was lost with development of embryos.
Injection experiment of diethylstilbestrol revealed that the estrogen level was essential for the production of agglutinogen. Genetic analysis showed that the production of agglutinogen was controlled by a single autosomal gene. These results indicate the participation of both estrogen and genotype in the production of “Ph” agglutinogen in chick red cells.
