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Genomic and phenotypic insights from an atlas of genetic effects on DNA methylation

  • Josine L. Min*
  • , Gibran Hemani
  • , Eilis Hannon
  • , Koen F. Dekkers
  • , Juan Castillo-Fernandez
  • , René Luijk
  • , Elena Carnero-Montoro
  • , Daniel J. Lawson
  • , Kimberley Burrows
  • , Matthew Suderman
  • , Andrew D. Bretherick
  • , Tom G. Richardson
  • , Johanna Klughammer
  • , Valentina Iotchkova
  • , Gemma Sharp
  • , Ahmad Al Khleifat
  • , Aleksey Shatunov
  • , Alfredo Iacoangeli
  • , Wendy L. McArdle
  • , Karen M. Ho
  • Ashish Kumar, Cilla Söderhäll, Carolina Soriano-Tárraga, Eva Giralt-Steinhauer, Nabila Kazmi, Dan Mason, Allan F. McRae, David L. Corcoran, Karen Sugden, Silva Kasela, Alexia Cardona, Felix R. Day, Giovanni Cugliari, Clara Viberti, Simonetta Guarrera, Michael Lerro, Richa Gupta, Sailalitha Bollepalli, Pooja Mandaviya, Yanni Zeng, Toni Kim Clarke, Rosie M. Walker, Vanessa Schmoll, Darina Czamara, Carlos Ruiz-Arenas, Faisal I. Rezwan, Riccardo E. Marioni, Ellen A. Nohr, Thorkild I.A. Sørensen, Camilla S. Morgen, BIOS Consortium
*Corresponding author for this work
  • University of Bristol
  • University of Exeter
  • Leiden University
  • King's College London
  • University of Granada
  • The University of Edinburgh
  • Vienna Biocenter (VBC)
  • University of Oxford
  • Maurice Wohl Clinical Neuroscience Institute
  • Karolinska Institute
  • Swiss Tropical and Public Health Institute (Swiss TPH)
  • University of Basel
  • Hospital del Mar
  • Bradford Institute for Health Research
  • The University of Queensland
  • Duke University
  • University of Tartu
  • University of Cambridge
  • University of Turin
  • Italian Institute for Genomic Medicine
  • University of Toronto
  • University of Helsinki
  • Erasmus University Medical Center Rotterdam
  • Sun Yat-sen University
  • Max Planck Institute of Psychiatry
  • CREAL
  • Pompeu Fabra University
  • CIBER Epidemiologia Y Salud Publica
  • University of Wales
  • University of South-Eastern Norway
  • University of Copenhagen

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Characterizing genetic influences on DNA methylation (DNAm) provides an opportunity to understand mechanisms underpinning gene regulation and disease. In the present study, we describe results of DNAm quantitative trait locus (mQTL) analyses on 32,851 participants, identifying genetic variants associated with DNAm at 420,509 DNAm sites in blood. We present a database of >270,000 independent mQTLs, of which 8.5% comprise long-range (trans) associations. Identified mQTL associations explain 15–17% of the additive genetic variance of DNAm. We show that the genetic architecture of DNAm levels is highly polygenic. Using shared genetic control between distal DNAm sites, we constructed networks, identifying 405 discrete genomic communities enriched for genomic annotations and complex traits. Shared genetic variants are associated with both DNAm levels and complex diseases, but only in a minority of cases do these associations reflect causal relationships from DNAm to trait or vice versa, indicating a more complex genotype–phenotype map than previously anticipated.

Original languageEnglish
JournalNature Genetics
Volume53
Issue number9
Pages (from-to)1311-1321
ISSN1061-4036
DOIs
Publication statusPublished - Sept 2021

Funding

C.L.R., G.D.S., G.S., J.L.M., K.B., M. Suderman, T.G.R. and T.R.G. are supported by the UK Medical Research Council (MRC) Integrative Epidemiology Unit at the University of Bristol (MC_UU_00011/1, MC_UU_00011/4, MC_UU_00011/5). C.L.R. receives support from a Cancer Research UK Programme grant (no. C18281/A191169). G.H. is funded by the Wellcome Trust and the Royal Society (208806/Z/17/Z). E.H. and J.M. were supported by MRC project grants (nos. MR/K013807/1 and MR/R005176/1 to J.M.) and an MRC Clinical Infrastructure award (no. MR/M008924/1 to J.M.). B.T.H. is supported by the Netherlands CardioVascular Research Initiative (the Dutch Heart Foundation, Dutch Federation of University Medical Centres, the Netherlands Organisation for Health Research and Development, and the Royal Netherlands Academy of Sciences) for the GENIUS project ‘Generating the best evidence-based pharmaceutical targets for atherosclerosis’ (CVON2011-19, CVON2017-20). J.T.B. was supported by the Economic and Social Research Council (grant no. ES/N000404/1). The present study was also supported by JPI HDHL-funded DIMENSION project (administered by the BBSRC UK, grant no. BB/S020845/1 to J.T.B., and by ZonMW the Netherlands, grant no. 529051021 to B.T.H). A.D.B. has been supported by a Wellcome Trust PhD Training Fellowship for Clinicians and the Edinburgh Clinical Academic Track programme (204979/Z/16/Z). J. Klughammer was supported by a DOC fellowship of the Austrian Academy of Sciences. Cohort-specific acknowledgements and funding are presented in the Supplementary Note. T.R.G. receives funding from GlaxoSmithKline and Biogen for unrelated research. The other authors declare no competing interests.

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