Cited by 990Genetic Associations and EpidemiologyGenetic Mapping and Diversity in Plants and AnimalsGenetic and phenotypic traits in livestock

Genotype Imputation

Open access
Li, Yun, Willer, Cristen, Sanna, Serena, Abecasis, Gonçalo·2009·Annual Review of Genomics and Human Genetics

Abstract

Genotype imputation is now an essential tool in the analysis of genome-wide association scans. This technique allows geneticists to accurately evaluate the evidence for association at genetic markers that are not directly genotyped. Genotype imputation is particularly useful for combining results across studies that rely on different genotyping platforms but also increases the power of individual scans. Here, we review the history and theoretical underpinnings of the technique. To illustrate performance of the approach, we summarize results from several gene mapping studies. Finally, we preview the role of genotype imputation in an era when whole genome resequencing is becoming increasingly common.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1146/annurev.genom.9.081307.164242

Cites

120 of 120 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Imputation methods are highly problematic for de novo or even moderately rare variants with frequencies below 1%.

    “Although highly problematic in situations involving de novo or even moderately rare variants (<1%), imputation methods involving rare variants have begun to receive attention and could be extremely useful in future association studies.98”
  • Each study was subject to GWAS quality control filters customized taking into account study-specific features and standardized to the HapMap reference panel and statistical genotype imputation.

    “Each study was first subject to GWAS quality control filters (customized taking into account study specific features21 as detailed in Supplementary Table 2) and standardized to the HapMap reference panel and statistical genotype imputation22–25.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [59]Li Y Ding J Abecasis GR Mach 1.0: Rapid Haplotype Reconstruction and Missing Genotype Inference American Journal of Human Genetics 2006 79 S2290

Cited by

Sorted by citations

Authors
Li, Y., Willer, C., Sanna, S., & Abecasis, G.
Affiliations
  • University of Michigan (US)
  • National Research Council (IT)
Venue
Annual Review of Genomics and Human Genetics
Published
2009-09-01
Volume
10
Issue
1
Pages
387-406
ISSN
  • 1527-8204 (ISSN-L)
  • 1545-293X
OpenAlex
W4240204556
Cited by
990
References
120
Citations by year
2026: 14 · 2025: 39 · 2024: 38 · 2023: 39 · 2022: 41 · 2021: 37 · 2020: 31 · 2019: 41 · 2018: 56 · 2017: 66 · 2016: 54 · 2015: 67 · 2014: 78 · 2013: 92 · 2012: 117
FWCI
9.30
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Genomics and Human Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
Funders
  • National Heart, Lung, and Blood Institute (U01HL084729, HL-84729)
  • National Institute of Mental Health (MH-84698, R01MH084698)
  • National Human Genome Research Institute (R01HG002651, HG-2651)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
Keywords
genotype imputation, genome-wide association study, genetic markers, genotyping platforms, statistical power, gene mapping, whole-genome resequencing
MeSH terms
Base Sequence, Genotype, Humans, Pedigree, Genome, Human, Sequence Alignment, Sequence Analysis, DNA

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review