Selection against variants in the genome associated with educational attainment.
other · Level V
Where this comes from
- Record sourced from PubMed, PMID 28096410.
- Also identified by DOI 10.1073/pnas.1612113114 and PMC identifier 5293043.
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Abstract
Epidemiological and genetic association studies show that genetics play an important role in the attainment of education. Here, we investigate the effect of this genetic component on the reproductive history of 109,120 Icelanders and the consequent impact on the gene pool over time. We show that an educational attainment polygenic score, POLY<sub>EDU,</sub> constructed from results of a recent study is associated with delayed reproduction (P < 10<sup>-100</sup>) and fewer children overall. The effect is stronger for women and remains highly significant after adjusting for educational attainment. Based on 129,808 Icelanders born between 1910 and 1990, we find that the average POLY<sub>EDU</sub> has been declining at a rate of ∼0.010 standard units per decade, which is substantial on an evolutionary timescale. Most importantly, because POLY<sub>EDU</sub> only captures a fraction of the overall underlying genetic component the latter could be declining at a rate that is two to three times faster.
Medical subject headings
- Educational Status
- Genetic Variation