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Discovery of 42 genome-wide significant loci associated with dyslexia

  • 23andMe Research Team
  • , Quantitative Trait Working Group of the GenLang Consortium
  • The Cerebra Centre for Neurodevelopmental Disorders, School of Psychology, University of Birmingham, Birmingham, UK.; Department of Child Life and Health, Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK.
  • 23andMe, Inc., Sunnyvale, CA, USA.
  • Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands.
  • Genetic Epidemiology Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, Queensland, Australia.
  • School of Psychology, Shaanxi Normal University and Shaanxi Key Research Center of Child Mental and Behavioral Health, Xi'an, China.
  • Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands.; Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands.; MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.
  • Language and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, the Netherlands.; Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, the Netherlands.
  • Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, UK.
  • School of Medicine, University of St Andrews, St Andrews, UK.
  • Office of the President, Tufts University, Medford, MA, USA.
  • Department of Physiology, Anatomy and Genetics, University of Oxford, Oxford, UK. [email protected].; Oxford Parkinson's Disease Centre, University of Oxford, Oxford, UK. [email protected].
  • Departments of Pediatrics and Genetics, Yale Medical School, New Haven, CT, USA.
  • Department of Psychology and Neuroscience, University of Colorado, Boulder, CO, USA.; Institute for Behavioral Genetics, University of Colorado, Boulder, CO, USA.
  • Department of Psychology, University of Denver, Denver, CO, USA.
  • Department of Neurological Sciences, College of Medicine, University of Nebraska Medical Center, Omaha, NE, USA.
  • Queensland Brain Institute, University of Queensland, Brisbane, Queensland, Australia.
  • Department of Psychology, University of Edinburgh, Edinburgh, UK. [email protected].

Research output: Contribution to journalArticlepeer-review

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Abstract

Reading and writing are crucial life skills but roughly one in ten children are affected by dyslexia, which can persist into adulthood. Family studies of dyslexia suggest heritability up to 70%, yet few convincing genetic markers have been found. Here we performed a genome-wide association study of 51,800 adults self-reporting a dyslexia diagnosis and 1,087,070 controls and identified 42 independent genome-wide significant loci: 15 in genes linked to cognitive ability/educational attainment, and 27 new and potentially more specific to dyslexia. We validated 23 loci (13 new) in independent cohorts of Chinese and European ancestry. Genetic etiology of dyslexia was similar between sexes, and genetic covariance with many traits was found, including ambidexterity, but not neuroanatomical measures of language-related circuitry. Dyslexia polygenic scores explained up to 6% of variance in reading traits, and might in future contribute to earlier identification and remediation of dyslexia.

Original languageEnglish
Pages (from-to)1621-1629
Number of pages9
JournalNature Genetics
Volume54
Issue number11
Early online date20 Oct 2022
DOIs
Publication statusPublished - Nov 2022

Bibliographical note

Copyright © 2022, The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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