Abstract
The pattern of linkage disequilibrium (LD) is affected by a number of factors, including population demography. High LD is seen in populations with a relatively limited and constant size, presumably because of genetic drift. We have examined the extent of LD among over 300 genome-wide pattern microsatellite loci in 29 populations from around the world. The pattern of LD varied between populations, with a larger extent of LD in populations with limited size relative to larger populations. In addition, the LD between 88 less well-spaced microsatellite markers from 10 different genomic regions was examined in the Sami compared with the general Swedish population. For these markers, increased LD extending up to 5 Mb was detected in the Sami. The amount of LD also differed between the chromosomal regions. The amount of LD in the Sami makes this population suitable for the mapping of complex genetic traits.
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Abecasis GR, Noguchi E, Heinzmann A, Traherne JA, Bhattacharyya S, Leaves NI, Anderson GG, Zhang Y, Lench NJ, Carey A, Cardon LR, Moffatt MF, Cookson WO (2001) Extent and distribution of linkage disequilibrium in three genomic regions. Am J Hum Genet 68:191–197
Ardlie KG, Kruglyak L, Seielstad M (2002) Patterns of linkage disequilibrium in the human genome. Nat Rev Genet 3:299–309
Beckman L (1996) Samerna en genetiskt unik urbefolkning. Solfjädern Offset, Umeå
Cann HM, de Toma C, Cazes L, Legrand MF, Morel V, Piouffre L, Bodmer J, Bodmer WF, Bonne-Tamir B, Cambon-Thomsen A, Chen Z, Chu J, Carcassi C, Contu L, Du R, Excoffier L, Ferrara GB, Friedlaender JS, Groot H, Gurwitz D, Jenkins T, Herrera RJ, Huang X, Kidd J, Kidd KK, Langaney A, Lin AA, Mehdi SQ, Parham P, Piazza A, Pistillo MP, Qian Y, Shu Q, Xu J, Zhu S, Weber JL, Greely HT, Feldman MW, Thomas G, Dausset J, Cavalli-Sforza LL (2002) A human genome diversity cell line panel. Science 296:261–262
Cavalli-Sforza LL, Wilson AC, Cantor CR, Cook-Deegan RM, King MC (1991) Call for a worldwide survey of human genetic diversity: a vanishing opportunity for the Human Genome Project. Genomics 11:490–491
Chakraborty R, Weiss KM (1988) Admixture as a tool for finding linked genes and detecting that difference from allelic association between loci. Proc Natl Acad Sci USA 85:9119–9123
Chapman NH, Wijsman EM (1998) Genome screens using linkage disequilibrium tests: optimal marker characteristics and feasibility. Am J Hum Genet 63:1872–1885
Dawson E, Abecasis GR, Bumpstead S, Chen Y, Hunt S, Beare DM, Pabial J, Dibling T, Tinsley E, Kirby S, Carter D, Papaspyridonos M, Livingstone S, Ganske R, Lohmussaar E, Zernant J, Tonisson N, Remm M, Magi R, Puurand T, Vilo J, Kurg A, Rice K, Deloukas P, Mott R, Metspalu A, Bentley DR, Cardon LR, Dunham I (2002) A first-generation linkage disequilibrium map of human chromosome 22. Nature 418:544–548
Dunning AM, Durocher F, Healey CS, Teare MD, McBride SE, Carlomagno F, Xu CF, Dawson E, Rhodes S, Ueda S, Lai E, Luben RN, Van Rensburg EJ, Mannermaa A, Kataja V, Rennart G, Dunham I, Purvis I, Easton D, Ponder BA (2000) The extent of linkage disequilibrium in four populations with distinct demographic histories. Am J Hum Genet 67:1544–1554
Hassler S, Sjolander P, Barnekow-Bergkvist M, Kadesjo A (2001) Cancer risk in the reindeer breeding Saami population of Sweden, 1961–1997. Eur J Epidemiol 17:969–976
Hassler S, Sjölander P, Ericsson AJ (2003) Construction of a database on health and living conditions of the Swedish Sami population. In: Lantto P, Sköld P (eds) Befolkning och bosättning i norr - etnicitet, identitet och gränser i historiens sken. Centre for Sami Research, Umeå University, Umeå, pp 107–124
Hill W, Robertson A (1968) Linkage disequilibrium in finite populations. Theor Appl Genet 38:226–231
Hudson RR (1990) Gene geneologies and the coalescent process. Oxf Surv Evol Biol 7:1–44
Johansson Å, Karlsson P, Gyllensten U (2003) A novel method for automatic genotyping of microsatellite markers based on parametric pattern recognition. Hum Genet 113:316–324
Kaessmann H, Zollner S, Gustafsson AC, Wiebe V, Laan M, Lundeberg J, Uhlen M, Paabo S (2002) Extensive linkage disequilibrium in small human populations in Eurasia. Am J Hum Genet 70:673–685
Kauppi L, Sajantila A, Jeffreys AJ (2003) Recombination hotspots rather than population history dominate linkage disequilibrium in the MHC class II region. Hum Mol Genet 12:33–40
Laan M, Paabo S (1997) Demographic history and linkage disequilibrium in human populations. Nat Genet 17:435–438
Larsen LA, Vuust J, Nystad M, Evseeva I, Van Ghelue M, Tranebjaerg L (2001) Analysis of FMR1 (CGG)(n) alleles and DXS548-FRAXAC1 haplotypes in three European circumpolar populations: traces of genetic relationship with Asia. Eur J Hum Genet 9:724–727
Lewontin RC, Kojima K (1960) The evolutionary dynamics of complex polymorphisms. Evolution 14:458–472
Lindqvist AK, Magnusson PK, Balciuniene J, Wadelius C, Lindholm E, Alarcon-Riquelme ME, Gyllensten UB (1996) Chromosome-specific panels of tri- and tetranucleotide microsatellite markers for multiplex fluorescent detection and automated genotyping: evaluation of their utility in pathology and forensics. Genome Res 6:1170–1176
Pritchard JK, Przeworski M (2001) Linkage disequilibrium in humans: models and data. Am J Hum Genet 69:1–14
Raymond M, Rousset F (1995) GENEPOP (version 1.2): population genetics software for exact tests and ecumenicism. J Hered 86:248–249
Reich DE, Cargill M, Bolk S, Ireland J, Sabeti PC, Richter DJ, Lavery T, Kouyoumjian R, Farhadian SF, Ward R, Lander ES (2001) Linkage disequilibrium in the human genome. Nature 411:199–204
Sajantila A, Lahermo P, Anttinen T, Lukka M, Sistonen P, Savontaus ML, Aula P, Beckman L, Tranebjaerg L, Gedde-Dahl T, Issel-Tarver L, DiRienzo A, Paabo S (1995) Genes and languages in Europe: an analysis of mitochondrial lineages. Genome Res 5:42–52
Sheffield VC, Stone EM, Carmi R (1998) Use of isolated inbred human populations for identification of disease genes. Trends Genet 14:391–396
Shifman S, Darvasi A (2001) The value of isolated populations. Nat Genet 28:309–310
Slatkin M (1994) Linkage disequilibrium in growing and stable populations. Genetics 137:331–336
Smith MW, Lautenberger JA, Shin HD, Chretien JP, Shrestha S, Gilbert DA, O’Brien SJ (2001) Markers for mapping by admixture linkage disequilibrium in African American and Hispanic populations. Am J Hum Genet 69:1080–1094
Soininen L, Jarvinen S, Pukkala E (2002) Cancer incidence among Sami in Northern Finland, 1979–1998. Int J Cancer 100:342–346
Tambets K, Rootsi S, Kivisild T, Help H, Serk P, Loogvali EL, Tolk HV, Reidla M, Metspalu E, Pliss L, Balanovsky O, Pshenichnov A, Balanovska E, Gubina M, Zhadanov S, Osipova L, Damba L, Voevoda M, Kutuev I, Bermisheva M, Khusnutdinova E, Gusar V, Grechanina E, Parik J, Pennarun E, Richard C, Chaventre A, Moisan JP, Barac L, Pericic M, Rudan P, Terzic R, Mikerezi I, Krumina A, Baumanis V, Koziel S, Rickards O, De Stefano GF, Anagnou N, Pappa KI, Michalodimitrakis E, Ferak V, Furedi S, Komel R, Beckman L, Villems R (2004) The western and eastern roots of the Saami–the story of genetic “outliers” told by mitochondrial DNA and Y chromosomes. Am J Hum Genet 74:661–682
Tenesa A, Wright AF, Knott SA, Carothers AD, Hayward C, Angius A, Persico I, Maestrale G, Hastie ND, Pirastu M, Visscher PM (2004) Extent of linkage disequilibrium in a Sardinian sub-isolate: sampling and methodological considerations. Hum Mol Genet 13:25–33
Terwilliger JD, Zollner S, Laan M, Paabo S (1998) Mapping genes through the use of linkage disequilibrium generated by genetic drift: “drift mapping” in small populations with no demographic expansion. Hum Hered 48:138–154
Varilo T, Laan M, Hovatta I, Wiebe V, Terwilliger JD, Peltonen L (2000) Linkage disequilibrium in isolated populations: Finland and a young sub-population of Kuusamo. Eur J Hum Genet 8:604–612
Varilo T, Paunio T, Parker A, Perola M, Meyer J, Terwilliger JD, Peltonen L (2003) The interval of linkage disequilibrium (LD) detected with microsatellite and SNP markers in chromosomes of Finnish populations with different histories. Hum Mol Genet 12:51–59
Wiklund K, Holm LE, Eklund G (1990) Cancer risks in Swedish Lapps who breed reindeer. Am J Epidemiol 132:1078–1082
Acknowledgements
We thank the members of the Sami communities for their participation. We are also grateful for the contribution of Laila Daerga and the Southern Lapland Research Department at Vilhelmina and Inger Jonasson, Jenny Jonsson and Per-Ivan Wyöni at the SSF National Genotyping Center, Department of Genetics and Pathology, Rudbeck laboratory, Uppsala University, Uppsala, Sweden. Åsa Johansson is affiliated to The Linnaeus Centre for Bioinformatics, Uppsala University, Uppsala, Sweden. This study was supported by grants from the Swedish Foundation for Strategic Research, the National Swedish Research Council, the Knut and Alice Wallenberg Foundation and Mål 1 Sápmi (dnr. SN 1.42–11/00).
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Åsa Johansson, Veronika Vavruch-Nilsson contributed equally to the report
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Johansson, Å., Vavruch-Nilsson, V., Edin-Liljegren, A. et al. Linkage disequilibrium between microsatellite markers in the Swedish Sami relative to a worldwide selection of populations. Hum Genet 116, 105–113 (2005). https://doi.org/10.1007/s00439-004-1213-8
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DOI: https://doi.org/10.1007/s00439-004-1213-8