Cited by 783Genomic variations and chromosomal abnormalitiesGenetic Associations and EpidemiologyGenomics and Phylogenetic Studies

Integrated genotype calling and association analysis of SNPs, common copy number polymorphisms and rare CNVs

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Korn, Joshua M, Kuruvilla, Finny G, McCarroll, Steven A, Wysoker, Alec, Nemesh, James, Cawley, Simon, Hubbell, Earl, Veitch, Jim +8 more·2008·Nature Genetics

Abstract

Accurate and complete measurement of single nucleotide (SNP) and copy number (CNV) variants, both common and rare, will be required to understand the role of genetic variation in disease. We present Birdsuite, a four-stage analytical framework instantiated in software for deriving integrated and mutually consistent copy number and SNP genotypes. The method sequentially assigns copy number across regions of common copy number polymorphisms (CNPs), calls genotypes of SNPs, identifies rare CNVs via a hidden Markov model (HMM), and generates an integrated sequence and copy number genotype at every locus (for example, including genotypes such as A-null, AAB and BBB in addition to AA, AB and BB calls). Such genotypes more accurately depict the underlying sequence of each individual, reducing the rate of apparent mendelian inconsistencies. The Birdsuite software is applied here to data from the Affymetrix SNP 6.0 array. Additionally, we describe a method, implemented in PLINK, to utilize these combined SNP and CNV genotypes for association testing with a phenotype.

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Authors
Korn, J. M., Kuruvilla, F. G., McCarroll, S. A., Wysoker, A., Nemesh, J., Cawley, S., Hubbell, E., Veitch, J., Collins, P. J., Darvishi, K., Lee, C., Nizzari, M. M., Gabriel, S. B., Purcell, S., Daly, M. J., & Altshuler, D.
Affiliations
  • Broad Institute (US)
  • Affymetrix (United States) (US)
  • Harvard University (US)
Corresponding author
  • Korn, Joshua M
  • Altshuler, David
Venue
Nature Genetics
Published
2008-09-07
Volume
40
Issue
10
Pages
1253-1260
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2140968934
Cited by
783
References
25
Citations by year
2026: 4 · 2025: 7 · 2024: 9 · 2023: 15 · 2022: 21 · 2021: 17 · 2020: 23 · 2019: 29 · 2018: 35 · 2017: 44 · 2016: 42 · 2015: 54 · 2014: 65 · 2013: 73 · 2012: 95
FWCI
47.30
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Human Genome Research Institute (T32HG002295)
  • National Institute of General Medical Sciences (T32GM008313)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
Keywords
genotype calling, copy number variation, single nucleotide polymorphisms, hidden Markov models, association analysis, rare CNVs, PLINK
MeSH terms
Algorithms, Chromosomes, Human, Chromosomes, Human, Pair 4, DNA, Female, Genotype, Haplotypes, Humans, Male, Markov Chains, Software, Models, Statistical, Genome, Human, Polymerase Chain Reaction, Gene Dosage, Oligonucleotide Array Sequence Analysis, Polymorphism, Single Nucleotide

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