Cited by 514Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersGenomics and Rare Diseases

Whole-genome sequencing of quartet families with autism spectrum disorder

Yuen, Ryan K C, Thiruvahindrapuram, Bhooma, Merico, Daniele, Walker, Susan, Tammimies, Kristiina, Hoang, Ny, Chrysler, Christina, Nalpathamkalam, Thomas +20 more·2015·Nature Medicine

Abstract

Autism spectrum disorder (ASD) is genetically heterogeneous, with evidence for hundreds of susceptibility loci. Previous microarray and exome-sequencing studies have examined portions of the genome in simplex families (parents and one ASD-affected child) having presumed sporadic forms of the disorder. We used whole-genome sequencing (WGS) of 85 quartet families (parents and two ASD-affected siblings), consisting of 170 individuals with ASD, to generate a comprehensive data resource encompassing all classes of genetic variation (including noncoding variants) and accompanying phenotypes, in apparently familial forms of ASD. By examining de novo and rare inherited single-nucleotide and structural variations in genes previously reported to be associated with ASD or other neurodevelopmental disorders, we found that some (69.4%) of the affected siblings carried different ASD-relevant mutations. These siblings with discordant mutations tended to demonstrate more clinical variability than those who shared a risk variant. Our study emphasizes that substantial genetic heterogeneity exists in ASD, necessitating the use of WGS to delineate all genic and non-genic susceptibility variants in research and in clinical diagnostics.

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Crossref · 10.1038/nm.3792

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Authors
Yuen, R. K. C., Thiruvahindrapuram, B., Merico, D., Walker, S., Tammimies, K., Hoang, N., Chrysler, C., Nalpathamkalam, T., Pellecchia, G., Liu, Y., Gazzellone, M. J., D'Abate, L., Deneault, E., Howe, J. L., Liu, R. S. C., Thompson, A., Zarrei, M., Uddin, M., Marshall, C. R., Ring, R. H., Zwaigenbaum, L., Ray, P. N., Weksberg, R., Carter, M. T., Fernandez, B. A., Roberts, W., Szatmari, P., & Scherer, S. W.
Affiliations
  • Hospital for Sick Children (CA)
  • University of Toronto (CA)
  • McMaster University (CA)
  • Shandong University (CN)
  • Autism Speaks (US)
  • University of Alberta (CA)
  • Memorial University of Newfoundland (CA)
Corresponding author
Scherer, Stephen W
Venue
Nature Medicine
Published
2015-01-26
Volume
21
Issue
2
Pages
185-191
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W1999204296
Cited by
514
References
61
Citations by year
2026: 12 · 2025: 12 · 2024: 38 · 2023: 21 · 2022: 35 · 2021: 35 · 2020: 51 · 2019: 54 · 2018: 63 · 2017: 80 · 2016: 74 · 2015: 38
FWCI
50.73
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Autism Speaks
  • Canadian Institutes of Health Research
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomics and Rare Diseases
Keywords
autism spectrum disorder, genetic heterogeneity, de novo mutations, structural variants, single nucleotide variants, non-coding variants, clinical heterogeneity, neurodevelopmental disorders, genetic susceptibility loci
MeSH terms
Adult, Child, Child Development Disorders, Pervasive, Female, Humans, Male, Parents, Sequence Analysis, DNA, Genetic Predisposition to Disease, Siblings

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