Migration, genetic markers and race admixture in Curitiba. Brazil

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Abstract
Summary One thousand Blacks and 1001 Whites from the southern Brazilian city of Curitiba were studied in relation to migration patterns, ABO and Rh blood groups, and haemoglobin types. Despite a lower socioeconomic level, Blacks migrated more than Whites. Carriers of abnormal haemoglobin types show about the same degree of mobility as those with normal haemoglobin only. As much as half of the genes present among the Blacks of this city may be of European origin, while persons classified as White may have from 3 to 19% of African ancestry.