Abstract
Blood pressure (BP) is a major risk factor for cardiovascular disease and more than 200 genetic loci associated with BP are known. Here, we perform a multi-stage genome-wide association study for BP ( max N = 289,038) principally in East Asians and meta-analysis in East Asians and Europeans. We report 19 new genetic loci and ancestry-specific BP variants, conforming to a common ancestry-specific variant association model. At 10 unique loci, distinct non-rare ancestry-specific variants colocalize within the same linkage disequilibrium block despite the significantly discordant effects for the proxy shared variants between the ethnic groups. The genome-wide transethnic correlation of causal-variant effect-sizes is 0.898 and 0.851 for systolic and diastolic BP, respectively. Some of the ancestry-specific association signals are also influenced by a selective sweep. Our results provide new evidence for the role of common ancestry-specific variants and natural selection in ethnic differences in complex traits such as BP.
Original language | English |
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Article number | 5052 |
Pages (from-to) | 1-16 |
Number of pages | 16 |
Journal | Nature Communications |
Volume | 9 |
DOIs | |
Publication status | Published - 28 Nov 2018 |
Keywords
- GENOME-WIDE ASSOCIATION
- BODY-MASS INDEX
- LINKAGE DISEQUILIBRIUM
- CARDIOVASCULAR-DISEASE
- FUNCTIONAL ANNOTATION
- RARE VARIANTS
- COMMON
- METAANALYSIS
- HERITABILITY
- ARCHITECTURE