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Meta-analysis of genome-wide association studies for personality

  • M. H.M. De Moor*
  • , P. T. Costa
  • , A. Terracciano
  • , R. F. Krueger
  • , E. J.C. De Geus
  • , T. Toshiko
  • , B. W.J.H. Penninx
  • , T. Esko
  • , P. A.F. Madden
  • , J. Derringer
  • , N. Amin
  • , G. Willemsen
  • , J. J. Hottenga
  • , M. A. Distel
  • , M. Uda
  • , S. Sanna
  • , P. Spinhoven
  • , C. A. Hartman
  • , P. Sullivan
  • , A. Realo
  • J. Allik, A. C. Heath, M. L. Pergadia, A. Agrawal, P. Lin, R. Grucza, T. Nutile, M. Ciullo, D. Rujescu, I. Giegling, B. Konte, E. Widen, D. L. Cousminer, J. G. Eriksson, A. Palotie, L. Peltonen, M. Luciano, A. Tenesa, G. Davies, L. M. Lopez, N. K. Hansell, S. E. Medland, L. Ferrucci, D. Schlessinger, G. W. Montgomery, M. J. Wright, Y. S. Aulchenko, A. C.J.W. Janssens, B. A. Oostra, A. Metspalu, G. R. Abecasis, I. J. Deary, K. Räikkönen, L. J. Bierut, N. G. Martin, C. M. Van Duijn, D. I. Boomsma
*Corresponding author for this work
  • Department of Biological Psychology
  • Vrije Universiteit Amsterdam
  • National Institutes of Health
  • Department of Psychology
  • University of Minnesota Twin Cities
  • Interdisciplinary Center Psychopathology and Emotion regulation (ICPE)
  • University of Groningen
  • Departments of Clinical Psychology and Psychiatry
  • Leiden University
  • Department of Psychiatry
  • University of Amsterdam
  • Institute of Molecular and Cell Biology
  • University of Tartu
  • University of Tartu
  • Department of Psychiatry
  • Washington University St. Louis
  • Department of Epidemiology
  • Erasmus University Rotterdam
  • Istituto di Neurogeneticae Neurofarmacologia
  • National Research Council of Italy
  • University of North Carolina at Chapel Hill
  • Department of Psychology
  • Ludwig Maximilian University of Munich
  • FIMM Institute for Molecular Medicine Finland
  • University of Helsinki
  • National Institute for Health and Welfare
  • Department of General Practice and Primary Health Care
  • Vaasa Hospital District
  • Unit of General Practice
  • Helsinki University Hospital
  • Folkhalsan
  • Wellcome Trust Sanger Institute
  • Broad Institute
  • Department of Medical Genetics
  • Department of Psychology
  • University of Edinburgh
  • NHS Lothian
  • Queensland Institute of Medical Research
  • Department of Clinical Genetics
  • Department of Biostatistics
  • University of Michigan, Ann Arbor
  • Department of Psychology

Research output: Contribution to journal › Article › peer-review

Abstract

Personality can be thought of as a set of characteristics that influence people's thoughts, feelings and behavior across a variety of settings. Variation in personality is predictive of many outcomes in life, including mental health. Here we report on a meta-analysis of genome-wide association (GWA) data for personality in 10 discovery samples (17 375 adults) and five in silico replication samples (3294 adults). All participants were of European ancestry. Personality scores for Neuroticism, Extraversion, Openness to Experience, Agreeableness and Conscientiousness were based on the NEO Five-Factor Inventory. Genotype data of ∼2.4M single-nucleotide polymorphisms (SNPs; directly typed and imputed using HapMap data) were available. In the discovery samples, classical association analyses were performed under an additive model followed by meta-analysis using the weighted inverse variance method. Results showed genome-wide significance for Openness to Experience near the RASA1 gene on 5q14.3 (rs1477268 and rs2032794, P2.8 × 10 -8 and 3.1 × 10 -8) and for Conscientiousness in the brain-expressed KATNAL2 gene on 18q21.1 (rs2576037, P4.9 × 10 -8). We further conducted a gene-based test that confirmed the association of KATNAL2 to Conscientiousness. In silico replication did not, however, show significant associations of the top SNPs with Openness and Conscientiousness, although the direction of effect of the KATNAL2 SNP on Conscientiousness was consistent in all replication samples. Larger scale GWA studies and alternative approaches are required for confirmation of KATNAL2 as a novel gene affecting Conscientiousness.

Original languageEnglish
Pages (from-to)337-349
Number of pages13
JournalMolecular Psychiatry
Volume17
Issue number3
DOIs
Publication statusPublished - 21 Dec 2010
Externally publishedYes

Keywords

  • Five-Factor Model
  • genetic variants
  • genome-wide association
  • meta-analysis
  • personality

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