Abstract
Trait-associated genetic variants affect complex phenotypes primarily via regulatory mechanisms on the transcriptome. To investigate the genetics of gene expression, we performed cis- and trans-expression quantitative trait locus (eQTL) analyses using blood-derived expression from 31,684 individuals through the eQTLGen Consortium. We detected cis-eQTL for 88% of genes, and these were replicable in numerous tissues. Distal trans-eQTL (detected for 37% of 10,317 trait-associated variants tested) showed lower replication rates, partially due to low replication power and confounding by cell type composition. However, replication analyses in single-cell RNA-seq data prioritized intracellular trans-eQTL. Trans-eQTL exerted their effects via several mechanisms, primarily through regulation by transcription factors. Expression of 13% of the genes correlated with polygenic scores for 1,263 phenotypes, pinpointing potential drivers for those traits. In summary, this work represents a large eQTL resource, and its results serve as a starting point for in-depth interpretation of complex phenotypes.Analyses of expression profiles from whole blood of 31,684 individuals identify cis-expression quantitative trait loci (eQTL) effects for 88% of genes and trans-eQTL effects for 37% of trait-associated variants.
Original language | English |
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Pages (from-to) | 1300-1310 |
Number of pages | 22 |
Journal | Nature Genetics |
Volume | 53 |
Issue number | 9 |
Early online date | 2021 |
DOIs | |
Publication status | Published - Sept 2021 |
Keywords
- GENOME-WIDE ASSOCIATION
- SERINE BIOSYNTHESIS
- HUMAN TRANSCRIPTOME
- ARCHITECTURE
- DISEASE
- DEFICIENCY
- RELEVANCE
- DISORDER
- LINKS
- RISK