Quantitative genome-wide association analyses of receptive language in the Danish High Risk and Resilience Study
Posted on 2020-07-08 - 04:25
Abstract Background One of the most basic human traits is language. Linguistic ability, and disability, have been shown to have a strong genetic component in family and twin studies, but molecular genetic studies of language phenotypes are scarce, relative to studies of other cognitive traits and neurodevelopmental phenotypes. Moreover, most genetic studies examining such phenotypes do not incorporate parent-of-origin effects, which could account for some of the heritability of the investigated trait. We performed a genome-wide association study of receptive language, examining both child genetic effects and parent-of-origin effects. Results Using a family-based cohort with 400 children with receptive language scores, we found a genome-wide significant paternal parent-of-origin effect with a SNP, rs11787922, on chromosome 9q21.31, whereby the T allele reduced the mean receptive language score by ~ 23, constituting a reduction of more than 1.5 times the population SD (P = 1.04 × 10−8). We further confirmed that this association was not driven by broader neurodevelopmental diagnoses in the child or a family history of psychiatric diagnoses by incorporating covariates for the above and repeating the analysis. Conclusions Our study reports a genome-wide significant association for receptive language skills; to our knowledge, this is the first documented genome-wide significant association for this phenotype. Furthermore, our study illustrates the importance of considering parent-of-origin effects in association studies, particularly in the case of cognitive or neurodevelopmental traits, in which parental genetic data are not always incorporated.
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Nudel, Ron; Christiani, Camilla A. J.; Ohland, Jessica; Uddin, Md Jamal; Hemager, Nicoline; Ellersgaard, Ditte; et al. (2020). Quantitative genome-wide association analyses of receptive language in the Danish High Risk and Resilience Study. figshare. Collection. https://doi.org/10.6084/m9.figshare.c.5052750.v1
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AUTHORS (16)
RN
Ron Nudel
CC
Camilla A. J. Christiani
JO
Jessica Ohland
MU
Md Jamal Uddin
NH
Nicoline Hemager
DE
Ditte Ellersgaard
KS
Katrine S. Spang
BB
Birgitte K. Burton
AG
Aja N. Greve
DG
Ditte L. Gantriis
JB
Jonas Bybjerg-Grauholm
JJ
Jens Richardt M. Jepsen
AT
Anne A. E. Thorup
OM
Ole Mors
TW
Thomas Werge
MN
Merete Nordentoft