Genome-wide association study identifies 48 common genetic variants associated with handedness.
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Version: Supplementary document
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State: Public
Version: Supplementary document
License: Not specified
Serval ID
serval:BIB_E7424914D13E
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Genome-wide association study identifies 48 common genetic variants associated with handedness.
Journal
Nature human behaviour
ISSN
2397-3374 (Electronic)
ISSN-L
2397-3374
Publication state
Published
Issued date
01/2021
Peer-reviewed
Oui
Volume
5
Number
1
Pages
59-70
Language
english
Notes
Publication types: Journal Article ; Meta-Analysis ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Publication Status: ppublish
Abstract
Handedness has been extensively studied because of its relationship with language and the over-representation of left-handers in some neurodevelopmental disorders. Using data from the UK Biobank, 23andMe and the International Handedness Consortium, we conducted a genome-wide association meta-analysis of handedness (N = 1,766,671). We found 41 loci associated (P < 5 × 10 <sup>-8</sup> ) with left-handedness and 7 associated with ambidexterity. Tissue-enrichment analysis implicated the CNS in the aetiology of handedness. Pathways including regulation of microtubules and brain morphology were also highlighted. We found suggestive positive genetic correlations between left-handedness and neuropsychiatric traits, including schizophrenia and bipolar disorder. Furthermore, the genetic correlation between left-handedness and ambidexterity is low (r <sub>G</sub> = 0.26), which implies that these traits are largely influenced by different genetic mechanisms. Our findings suggest that handedness is highly polygenic and that the genetic variants that predispose to left-handedness may underlie part of the association with some psychiatric disorders.
Keywords
Adult, Aged, Female, Functional Laterality/genetics, Gene Frequency/genetics, Genetic Loci/genetics, Genetic Variation/genetics, Genome-Wide Association Study, Humans, Linkage Disequilibrium, Male, Middle Aged, Polymorphism, Single Nucleotide/genetics, Quantitative Trait, Heritable, Sex Factors
Pubmed
Web of science
Create date
05/10/2020 13:00
Last modification date
13/01/2024 7:23