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An integrated map of genetic variation from 1,092 human genomes
Journal article   Open access   Peer reviewed

An integrated map of genetic variation from 1,092 human genomes

Goncalo R Abecasis, Adam Auton, Lisa D Brooks, Mark A DePristo, Richard M Durbin, Robert E Handsaker, Hyun Min Kang, Gabor T Marth, Gil A McVean and 1000 Genomes Project Consortium
Nature (London), Vol.491(7422), pp.56-65
11/01/2012
DOI: 10.1038/nature11632
PMCID: PMC3498066
PMID: 23128226
url
https://doi.org/10.1038/nature11632View
Published (Version of record) Open Access

Abstract

By characterizing the geographic and functional spectrum of human genetic variation, the 1000 Genomes Project aims to build a resource to help to understand the genetic contribution to disease. Here we describe the genomes of 1,092 individuals from 14 populations, constructed using a combination of low-coverage whole-genome and exome sequencing. By developing methods to integrate information across several algorithms and diverse data sources, we provide a validated haplotype map of 38 million single nucleotide polymorphisms, 1.4 million short insertions and deletions, and more than 14,000 larger deletions. We show that individuals from different populations carry different profiles of rare and common variants, and that low-frequency variants show substantial geographic differentiation, which is further increased by the action of purifying selection. We show that evolutionary conservation and coding consequence are key determinants of the strength of purifying selection, that rare-variant load varies substantially across biological pathways, and that each individual contains hundreds of rare non-coding variants at conserved sites, such as motif-disrupting changes in transcription-factor-binding sites. This resource, which captures up to 98% of accessible single nucleotide polymorphisms at a frequency of 1% in related populations, enables analysis of common and low-frequency variants in individuals from diverse, including admixed, populations.
Genomics Genetics, Population Conserved Sequence - genetics Genome-Wide Association Study Humans Binding Sites - genetics Continental Population Groups - genetics Genome, Human - genetics Transcription Factors - metabolism Haplotypes - genetics Genetics, Medical Nucleotide Motifs Alleles Polymorphism, Single Nucleotide - genetics Genetic Variation - genetics Evolution, Molecular Sequence Deletion - genetics

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