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Admixture and Heterozygosity in West Alaskan Populations

Published online by Cambridge University Press:  31 July 2008

Pamela J. Byard ,
M. S. Schanfield  and
Michael H. Crawford
Pamela J. Byard
Affiliation:
Department of Anthropology, University of Kansas, Lawrence, Kansas, USA
M. S. Schanfield
Affiliation:
American Red Cross Services, Bethesda, Maryland, USA
Michael H. Crawford
Affiliation:
Department of Anthropology, University of Kansas, Lawrence, Kansas, USA
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Summary

Average heterozygosities for four communities (Savoonga and Gambell on St Lawrence Island, the King Island community now located in Nome, and Wales) are computed from blood allele frequencies. No significant relationship is found between this measure of heterozygosity and the amount of European admixture calculated from gamma globulin haplotype frequencies, indicating that forces other than European gene flow are affecting relative heterozygosity. However, within the two villages on St Lawrence Island, admixed individuals as a group have significantly higher average heterozygosity than non-admixed individuals. These results suggest that European gene flow significantly increases population heterozygosity when examined from a micro-populational or individual level, but may be obscured by other factors when several different populations are compared. This is probably because inter-village variation in admixture proportions, which range from zero to 8%, is small.

Type
Research Article
Information
Journal of Biosocial Science , Volume 15 , Issue 2 , April 1983 , pp. 207 - 216
Copyright
Copyright © 1983, Cambridge University Press

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References

Byard, P.J. (1981) Population History, Demography, and Genetics of the St. Lawrence Island Eskimos. PhD dissertation. University Microfilms, Ann Arbor, Michigan.Google Scholar
Collins, H.B. (1960) Comment on J. L. Giddings, the archeology of Bering Strait. Curr. Anthrop. 1, 131.Google Scholar
Crawford, M.H., Devor, E.J., Dykes, D.D. & Polesky, H.F. (1981) Population structure of Alaskan and Siberian indigenous communities. Am. J. phys. Anthrop. 55, 167.CrossRefGoogle ScholarPubMed
Fleiss, J.L. (1973) Statistical Methods for Rates and Proportions. Wiley, New York.Google Scholar
Foote, D.C. (1965) Exploration and Resource Utilization in Northwestern Arctic Alaska Before 1855. PhD thesis, McGill University, Montreal.Google Scholar
Harpending, H. & Chasko, W. (1976) Heterozygosity and population structure in southern Africa. In: The Measures of Man. Edited by Giles, E. and Friedlaender, J.S.. Peabody Museum Press, Cambridge, Mass.Google Scholar
Hooper, C.L. (1881) Report of the Cruise of the U.S. Revenue Steamer Corwin in the Arctic Ocean. Government Printing Office, Washington, DC.Google Scholar
Porter, R.B. (1893) Report on Population and Resources of Alaska. Eleventh Census, 1890. Government Printing Office, Washington, DC.Google Scholar
Ray, D.J. (1975) The Eskimos of Bering Strait, 1650–1898. University of Washington Press, Seattle.Google Scholar
Schanfield, M.S. (1976) Immunoglobin haplotypes in Tlaxcaltecan and other populations. In: The Tlaxcaltecans. Edited by Crawford, M.H.University of Kansas Press, Lawrence.Google Scholar
Van Stone, J.W. (1958) Commercial whaling in the Arctic Ocean. Pacific Northwest Q. 49, 1.Google Scholar