X-linked genes of the H-Y antigen system in the wood lemming (Myopus schisticolor).
H-Y antigen was investigated in 18 specimens representing six different sex chromosome constitutions of the wood lemming (Myopus schisticolor). The control range of H-Y antigen was defined by the sex difference between normal XX females (H-Y negative per definitionem) and normal XY males (H-Y positive, full titer). H-Y antigen titers of the X*Y and X*0 females were in the male control range, while in the X*X and X0 females the titers were intermediary. Data were obtained with two different H-Y antigen assays: the Raji cell cytotoxicity test and the peroxidase-antiperoxidase (PAP) method. Fibroblasts, gonadal cells, and spleen cells were checked. Presence of full titers of H-Y antigen in the absence of testis differentiation is readily explained by the assumption of a deficiency of the gonad-specific receptor of H-Y antigen. Since sex reversal is inherited as an X-linked trait, genes for this receptor are most likely X-linked. The implications of our findings are discussed in connection with earlier findings concerning H-Y antigen in XY gonadal dysgenesis in man and the X0 situation in man and mouse.
D000818:Animals; D000911:Antibodies, Monoclonal / Q000276:immunology; D003411:Arvicolinae / Q000235:genetics*; D002460:Cell Line; D003601:Cytotoxicity Tests, Immunologic; D005260:Female; D005796:Genes; D008040:Genetic Linkage; D006182:H-Y Antigen / Q000235:genetics* / Q000276:immunology; D007106:Immune Sera; D008297:Male; D012730:Sex Chromosomes; D012733:Sex Differentiation; D014960:X Chromosome
D000911:Antibodies, Monoclonal; D006182:H-Y Antigen; D007106:Immune Sera