Thursday 29th June 2017,
Intelligence

Global collaboration on GWAS yields 336 genetic effects linked to Cognitive Ability!

June 13, 2017 News
ng 2017 Gene hits
In the search to increase important economic and health-related life benefits linked to cognitive abilities, and knowing that many of these benefits are linked to the combined action of thousands of very, very small genetic effects, researchers have recognized that they need to pull together massive samples to make progress.
Now, combining DNA and cognitive data from almost 80,000 individuals has yielded over 300 individual SNPs in 18 distinct genomic regions, 15 of which were previously unknown. These regions contain 22 genes, again, 11 of which are novel targets for understanding variation in human cognition.
Fully half of these 300+ SNPs are located inside genes, predominantly genes expressed in the brain where they influence the cellular developmental trajectories. The data may even yield more hits, with approaches aggregating evidence at the gene-level rather than the SNP level  identifying 30 more genes. These results require replication, and no doubt labs around the world are onto this task.
The original paper, senior-authored by past ISIR speaker Daniel Posthuma is available at Nature Genetics

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