Population Studies in Northern Sweden

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Abstract
Frequencies of the Duffy blood groups were studied in 222 Swedish Lapps and in a series of 3151 Swedish conscripts and blood donors form the counties of Norrbotten and Vasterbotten in northern Sweden. The conscripts and blood donors were distributed according to place of birth into 23 subpopulations. The frequency of the Fya gene among the Lapps was significantly higher than that in the Norrbotten and Vasterbotten populations. The inbreeding coefficient FST for northern Sweden was found to be 2.8 .times. 10-3 and significant (P < 0.05). The Fya gene frequency in Vasterbotten county was significantly higher than that in Norrbotten county. The overall picture of geographical variation of the Fya gene was not explainable in terms of Lappish and Finnish influence, it was rather contrary to the expected ethnic influence. The reason for this discrepancy is discussed.