DNA-polymorphic patterns linked to the β-globin genes in German families affected with hemoglobinopathies and thalassemias: a comparison to other ethnic groups

Abstract
DNA haplotype constellations of the β-globin gene cluster have been analyzed in German families with hemoglobinopathies (Hb Freiburg, Hb Köln, Hb Presbyterian) and β-thalassemias. The polymorphis patterns obtained were compared to those found in families from Greece, Italy, and Turkey affected by β-thalassemia syndromes. With the combined analysis of seven restriction site polymorphisms a DNA-diagnostic prediction for additional offspring could be made with an overall frequency of 75% in the four ethnic groups.