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Table of Contents
Vol. 70, No. 2, 2010
Issue release date: July 2010
Section title: Original Paper
Hum Hered 2010;70:141–149

Genetic Differences between Five European Populations

Moskvina V.a · Smith M.a · Ivanov D.a · Blackwood D.b · StClair D.c · Hultman C.d · Toncheva D.e · Gill M.f · Corvin A.f · O’Dushlaine C.f · Morris D.W.f · Wray N.R.g · Sullivan P.h · Pato C.i · Pato M.T.i · Sklar P.j · Purcell S.j · Holmans P.a · O’Donovan M.C.a · Owen M.J.a · Kirov G.a · International Schizophrenia Consortium1
aMRC Centre for Neuropsychiatric Genetics and Genomics, Department of Psychological Medicine and Neurology, School of Medicine, Cardiff University, Cardiff, bDivision of Psychiatry, School of Molecular and Clinical Medicine, University of Edinburgh, Edinburgh, and cInstitute of Medical Sciences, University of Aberdeen, Aberdeen, UK; dDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; eDepartment of Medical Genetics, University Hospital Maichin Dom, Sofia, Bulgaria; fNeuropsychiatric Genetics Research Group, Department of Psychiatry and Institute of Molecular Medicine, Trinity College Dublin, Dublin, Ireland; gQueensland Institute of Medical Research, Brisbane, Qld., Australia; hDepartment of Genetics, University of North Carolina, Chapel Hill, N.C., iDepartment of Psychiatry and the Behavioral Sciences, Franz Alexander Chair in Psychiatry, Keck School of Medicine at USC, Los Angeles, Calif., jBroad Institute of Harvard and MIT, Cambridge, Mass., and Center for Human Genetic Research, Massachusetts General Hospital, Boston, Mass., USA
email Corresponding Author

Valentina Moskvina and George Kirov

MRC Centre for Neuropsychiatric Genetics and Genomics

Department of Psychological Medicine and Neurology, School of Medicine

Cardiff University, Heath Park, Cardiff CF14 4XN (UK), Tel. +44 292 074 6611 Fax +44 292 068 7068, E-Mail MoskvinaV1@cardiff.ac.uk or Kirov@cardiff.ac.uk

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Aims: We sought to examine the magnitude of the differences in SNP allele frequencies between five European populations (Scotland, Ireland, Sweden, Bulgaria and Portugal) and to identify the loci with the greatest differences. Methods: We performed a population-based genome-wide association analysis with Affymetrix 6.0 and 5.0 arrays. We used a 4 degrees of freedom χ2 test to determine the magnitude of stratification for each SNP. We then examined the genes within the most stratified regions, using a highly conservative cutoff of p < 10–45. Results: We found 40,593 SNPs which are genome-wide significantly (p ≤ 10–8) stratified between these populations. The largest differences clustered in gene ontology categories for immunity and pigmentation. Some of the top loci span genes that have already been reported as highly stratified: genes for hair color and pigmentation (HERC2, EXOC2, IRF4), the LCT gene, genes involved in NAD metabolism, and in immunity (HLA and the Toll-like receptor genes TLR10, TLR1, TLR6). However, several genes have not previously been reported as stratified within European populations, indicating that they might also have provided selective advantages: several zinc finger genes, two genes involved in glutathione synthesis or function, and most intriguingly, FOXP2, implicated in speech development. Conclusion: Our analysis demonstrates that many SNPs show genome-wide significant differences within European populations and the magnitude of the differences correlate with the geographical distance. At least some of these differences are due to the selective advantage of polymorphisms within these loci.

© 2010 S. Karger AG, Basel

Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: January 15, 2010
Accepted: April 17, 2010
Published online: July 08, 2010
Issue release date: July 2010

Number of Print Pages: 9
Number of Figures: 2
Number of Tables: 2

ISSN: 0001-5652 (Print)
eISSN: 1423-0062 (Online)

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