Genome-wide meta-analysis of brain volume identifies genomic loci and genes shared with intelligence

Autor: Christiaan de Leeuw, Martijn P. van den Heuvel, Philip R. Jansen, Yongbin Wei, Danielle Posthuma, Mats Nagel, Jeanne E. Savage, Sophie van der Sluis, Kyoko Watanabe
Přispěvatelé: Human genetics, Amsterdam Neuroscience - Complex Trait Genetics, Amsterdam Reproduction & Development (AR&D), APH - Aging & Later Life, APH - Mental Health, Complex Trait Genetics
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)
Nature Communications, 11(1):5606
Nature Communications
Jansen, P R, Nagel, M, Watanabe, K, Wei, Y, Savage, J E, de Leeuw, C A, van den Heuvel, M P, van der Sluis, S & Posthuma, D 2020, ' Genome-wide meta-analysis of brain volume identifies genomic loci and genes shared with intelligence ', Nature Communications, vol. 11, no. 1, 5606 . https://doi.org/10.1038/s41467-020-19378-5
Nature Communications, 11:5606, 1-12. Nature Publishing Group
Jansen, P R, Nagel, M, Watanabe, K, Wei, Y, Savage, J E, de Leeuw, C A, van den Heuvel, M P, van der Sluis, S & Posthuma, D 2020, ' Genome-wide meta-analysis of brain volume identifies genomic loci and genes shared with intelligence ', Nature Communications, vol. 11, 5606, pp. 1-12 . https://doi.org/10.1038/s41467-020-19378-5
ISSN: 2041-1723
Popis: The phenotypic correlation between human intelligence and brain volume (BV) is considerable (r ≈ 0.40), and has been shown to be due to shared genetic factors. To further examine specific genetic factors driving this correlation, we present genomic analyses of the genetic overlap between intelligence and BV using genome-wide association study (GWAS) results. First, we conduct a large BV GWAS meta-analysis (N = 47,316 individuals), followed by functional annotation and gene-mapping. We identify 18 genomic loci (14 not previously associated), implicating 343 genes (270 not previously associated) and 18 biological pathways for BV. Second, we use an existing GWAS for intelligence (N = 269,867 individuals), and estimate the genetic correlation (rg) between BV and intelligence to be 0.24. We show that the rg is partly attributable to physical overlap of GWAS hits in 5 genomic loci. We identify 92 shared genes between BV and intelligence, which are mainly involved in signaling pathways regulating cell growth. Out of these 92, we prioritize 32 that are most likely to have functional impact. These results provide information on the genetics of BV and provide biological insight into BV’s shared genetic etiology with intelligence.
Brain volume and intelligence have been previously found to have shared genetic etiology, but the specific common genetic signals have not been identified. Here, the authors perform a genome-wide association study on brain volume, finding common genetic loci driving brain volume and intelligence.
Databáze: OpenAIRE