Genetic Structure of the Spanish Population

Background Genetic admixture is a common caveat for genetic association analysis. Therefore, it is important to characterize the genetic structure of the population under study to control for this kind of potential bias. Results In this study we have sampled over 800 unrelated individuals from the p...

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Bibliographic Details
Authors: Gayán, Javier, Galan, José J., González-Pérez, Antonio, Sáez, María Eugenia, Martínez-Larrad, María Teresa, Zabena, Carina, Ramírez Lorca, Reposo, Real Navarrete, Luis Miguel, Serrano-Ríos, Manuel
Format: article
Status:Published version
Publication Date:2010
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/176814
Online Access:https://hdl.handle.net/11441/176814
https://doi.org/10.1186/1471-2164-11-326
Access Level:Open access
Keyword:Copy-Number Variations
Human Genome
European Populations
Haplotype Map
Association
Prevalence
Disease
Description
Summary:Background Genetic admixture is a common caveat for genetic association analysis. Therefore, it is important to characterize the genetic structure of the population under study to control for this kind of potential bias. Results In this study we have sampled over 800 unrelated individuals from the population of Spain, and have genotyped them with a genome-wide coverage. We have carried out linkage disequilibrium, haplotype, population structure and copy-number variation (CNV) analyses, and have compared these estimates of the Spanish population with existing data from similar efforts. Conclusions In general, the Spanish population is similar to the Western and Northern Europeans, but has a more diverse haplotypic structure. Moreover, the Spanish population is also largely homogeneous within itself, although patterns of micro-structure may be able to predict locations of origin from distant regions. Finally, we also present the first characterization of a CNV map of the Spanish population. These results and original data are made available to the scientific community.