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. 2016 Oct;48(10):1279-83.
doi: 10.1038/ng.3643. Epub 2016 Aug 22.

A reference panel of 64,976 haplotypes for genotype imputation

Shane McCarthy  1 Sayantan Das  2   3 Warren Kretzschmar  4 Olivier Delaneau  5 Andrew R Wood  6 Alexander Teumer  7   8 Hyun Min Kang  2   3 Christian Fuchsberger  2   3 Petr Danecek  9 Kevin Sharp  10 Yang Luo  1 Carlo Sidore  11 Alan Kwong  2   3 Nicholas Timpson  12 Seppo Koskinen  13 Scott Vrieze  14   15 Laura J Scott  2   3 He Zhang  16 Anubha Mahajan  4 Jan Veldink  17 Ulrike Peters  18   19 Carlos Pato  20 Cornelia M van Duijn  21 Christopher E Gillies  22 Ilaria Gandin  23 Massimo Mezzavilla  24   25 Arthur Gilly  1 Massimiliano Cocca  23 Michela Traglia  26 Andrea Angius  11 Jeffrey C Barrett  1 Dorrett Boomsma  27 Kari Branham  28 Gerome Breen  29   30 Chad M Brummett  31 Fabio Busonero  11 Harry Campbell  32 Andrew Chan  32   33 Sai Chen  2   3   34   35 Emily Chew  36 Francis S Collins  37 Laura J Corbin  12 George Davey Smith  12 George Dedoussis  38 Marcus Dorr  39   40 Aliki-Eleni Farmaki  38 Luigi Ferrucci  41 Lukas Forer  42 Ross M Fraser  31 Stacey Gabriel  43 Shawn Levy  44 Leif Groop  45   46   47 Tabitha Harrison  18 Andrew Hattersley  48 Oddgeir L Holmen  49 Kristian Hveem  49 Matthias Kretzler  34   35   50 James C Lee  51   52 Matt McGue  53 Thomas Meitinger  54   55   56 David Melzer  57 Josine L Min  12 Karen L Mohlke  58 John B Vincent  59   60   61 Matthias Nauck  8   40 Deborah Nickerson  62 Aarno Palotie  43   63   64   65   66   67 Michele Pato  20 Nicola Pirastu  23 Melvin McInnis  68 J Brent Richards  69   70   71 Cinzia Sala  26 Veikko Salomaa  13 David Schlessinger  72 Sebastian Schoenherr  42 P Eline Slagboom  73 Kerrin Small  71 Timothy Spector  71 Dwight Stambolian  74 Marcus Tuke  6 Jaakko Tuomilehto  75   76   77   78 Leonard H Van den Berg  17 Wouter Van Rheenen  17 Uwe Volker  40   79 Cisca Wijmenga  80 Daniela Toniolo  26 Eleftheria Zeggini  1 Paolo Gasparini  23   25 Matthew G Sampson  22 James F Wilson  32   81 Timothy Frayling  6 Paul I W de Bakker  82   83 Morris A Swertz  80   84 Steven McCarroll  85   86 Charles Kooperberg  18 Annelot Dekker  17 David Altshuler  43   65   87   88   89   90 Cristen Willer  16   34   35 William Iacono  53 Samuli Ripatti  91 Nicole Soranzo  1   92   93 Klaudia Walter  1 Anand Swaroop  94 Francesco Cucca  11 Carl A Anderson  1 Richard M Myers  44 Michael Boehnke  2   3 Mark I McCarthy  4   95   96 Richard Durbin  1 Haplotype Reference Consortium
Collaborators, Affiliations

A reference panel of 64,976 haplotypes for genotype imputation

Shane McCarthy et al. Nat Genet. 2016 Oct.

Abstract

We describe a reference panel of 64,976 human haplotypes at 39,235,157 SNPs constructed using whole-genome sequence data from 20 studies of predominantly European ancestry. Using this resource leads to accurate genotype imputation at minor allele frequencies as low as 0.1% and a large increase in the number of SNPs tested in association studies, and it can help to discover and refine causal loci. We describe remote server resources that allow researchers to carry out imputation and phasing consistently and efficiently.

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Figures

Figure 1
Figure 1. Performance of imputation using different reference panel.
The x-axis shows the non-reference allele frequency of the SNP being imputed on a log scale. The y-axis shows imputation accuracy measured by aggregate r2 when imputing SNP genotypes into 10 CEU samples. These results are based on using genotypes from sites on Illumina OMNI 1M SNP array was used as pseudo-GWAS data.
Figure 2
Figure 2. Association signal α1-antitripsin phenotype at the SERPINA1 locus.
Association test statistics on the –log10 p-value scale (y-axis) are plotted for each SNP position (x-axis). Three different imputation panels were used : HapMap2 (left), 1000GP3 (middle), HRC release 1 (right). The SNP rs28929474 is shown as a purple and other SNPs are coloured according to the levels of LD (r2) with this SNP (see r2 legend in each subplot)

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