[Gene frequencies in the ABO, P and Lutheran systems in Algeria].

An hemotypological study of the Algerian population has been carried out in the ABO, P and Lutheran systems. The red blood cell phenotyping by micromethods involved 4,444 subjects for the ABO system, 4,484 for the P system, and 4,303 for the Lutheran system. Gene frequencies were determined for each Wilaya of the country. In the ABO system, the values vary from 0.1315 to 0.2721 for A allele, from 0.0849 to 0.1615 for B allele, and from 0.6054 to 0.7388 for O allele. In the P system, the values of P1 gene vary from 0.5254 to 0.6201. In the Lutheran system, the values of Lua allele are not exceeding 0.0326. The Algerian population is generally characterised by a A gene of intermediate frequency between those of Caucasoïds and Negroïds, a B gene of frequency close to that of Negroïds, and O and P1 genes of frequencies close to those of Caucasoïds.