Meta-analysis of Genome-Wide Association Studies for Extraversion: Findings from the Genetics of Personality Consortium.

Authors:
Stéphanie M van den Berg Marleen H M de Moor Karin J H Verweij Robert F Krueger Michelle Luciano Alejandro Arias Vasquez Lindsay K Matteson Jaime Derringer Tõnu Esko Najaf Amin Scott D Gordon Narelle K Hansell Amy B Hart Ilkka Seppälä Jennifer E Huffman Bettina Konte Jari Lahti Minyoung Lee Mike Miller Teresa Nutile Toshiko Tanaka Alexander Teumer Alexander Viktorin Juho Wedenoja Abdel Abdellaoui Goncalo R Abecasis Daniel E Adkins Arpana Agrawal Jüri Allik Katja Appel Timothy B Bigdeli Fabio Busonero Harry Campbell Paul T Costa George Davey Smith Gail Davies Harriet de Wit Jun Ding Barbara E Engelhardt Johan G Eriksson Iryna O Fedko Luigi Ferrucci Barbara Franke Ina Giegling Richard Grucza Annette M Hartmann Andrew C Heath Kati Heinonen Anjali K Henders Georg Homuth Jouke-Jan Hottenga William G Iacono Joost Janzing Markus Jokela Robert Karlsson John P Kemp Matthew G Kirkpatrick Antti Latvala Terho Lehtimäki David C Liewald Pamela A F Madden Chiara Magri Patrik K E Magnusson Jonathan Marten Andrea Maschio Hamdi Mbarek Sarah E Medland Evelin Mihailov Yuri Milaneschi Grant W Montgomery Matthias Nauck Michel G Nivard Klaasjan G Ouwens Aarno Palotie Erik Pettersson Ozren Polasek Yong Qian Laura Pulkki-Råback Olli T Raitakari Anu Realo Richard J Rose Daniela Ruggiero Carsten O Schmidt Wendy S Slutske Rossella Sorice John M Starr Beate St Pourcain Angelina R Sutin Nicholas J Timpson Holly Trochet Sita Vermeulen Eero Vuoksimaa Elisabeth Widen Jasper Wouda Margaret J Wright Lina Zgaga David Porteous Alessandra Minelli Abraham A Palmer Dan Rujescu Marina Ciullo Caroline Hayward Igor Rudan Andres Metspalu Jaakko Kaprio Ian J Deary Katri Räikkönen James F Wilson Liisa Keltikangas-Järvinen Laura J Bierut John M Hettema Hans J Grabe Brenda W J H Penninx Cornelia M van Duijn David M Evans David Schlessinger Nancy L Pedersen Antonio Terracciano Matt McGue Nicholas G Martin Dorret I Boomsma

Behav Genet 2016 Mar 11;46(2):170-82. Epub 2015 Sep 11.

Department of Biological Psychology, VU University Amsterdam, Amsterdam, The Netherlands.

Extraversion is a relatively stable and heritable personality trait associated with numerous psychosocial, lifestyle and health outcomes. Despite its substantial heritability, no genetic variants have been detected in previous genome-wide association (GWA) studies, which may be due to relatively small sample sizes of those studies. Here, we report on a large meta-analysis of GWA studies for extraversion in 63,030 subjects in 29 cohorts. Extraversion item data from multiple personality inventories were harmonized across inventories and cohorts. No genome-wide significant associations were found at the single nucleotide polymorphism (SNP) level but there was one significant hit at the gene level for a long non-coding RNA site (LOC101928162). Genome-wide complex trait analysis in two large cohorts showed that the additive variance explained by common SNPs was not significantly different from zero, but polygenic risk scores, weighted using linkage information, significantly predicted extraversion scores in an independent cohort. These results show that extraversion is a highly polygenic personality trait, with an architecture possibly different from other complex human traits, including other personality traits. Future studies are required to further determine which genetic variants, by what modes of gene action, constitute the heritable nature of extraversion.

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http://dx.doi.org/10.1007/s10519-015-9735-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4751159PMC
March 2016
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3 Citations
3.210 Impact Factor

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