Genetic polymorphism of orosomucoid (ORM) was studied by isoelectric focusing and immunoblotting in Finns, Swedes and Swedish Saamis. The ORM2 locus was found to be monomorphic in all three ethnic groups. In the Swedish sample the frequency of the ORM1*2 allele (0.414) was within the range found in other European populations, whereas Finns (0.282) and Saamis (0.210) showed significantly lower ORMl*2 frequencies. The extremely low ORM1*2 frequency in the Saamis further underlines the genetic uniqueness of this population. The ORM1*2 frequency in Saamis resembles those in Asiatic Mongoloid populations, but this is unlikely to reflect an Asiatic influence, since the accumulated knowledge on genetic markers in the Saamis show no unequivocal evidence for an Asiatic influence in this population.

Keywords:
Orosomucoid types, Polymorphism, Finns, Swedes, Saamis
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© 1993 S. Karger AG, Basel
1993
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