Cited by 1,221Forensic and Genetic ResearchGenetic diversity and population structureGenetic Associations and Epidemiology

The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.

Resolving Individuals Contributing Trace Amounts of DNA to Highly Complex Mixtures Using High-Density SNP Genotyping Microarrays

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Abstract

We use high-density single nucleotide polymorphism (SNP) genotyping microarrays to demonstrate the ability to accurately and robustly determine whether individuals are in a complex genomic DNA mixture. We first develop a theoretical framework for detecting an individual's presence within a mixture, then show, through simulations, the limits associated with our method, and finally demonstrate experimentally the identification of the presence of genomic DNA of specific individuals within a series of highly complex genomic mixtures, including mixtures where an individual contributes less than 0.1% of the total genomic DNA. These findings shift the perceived utility of SNPs for identifying individual trace contributors within a forensics mixture, and suggest future research efforts into assessing the viability of previously sub-optimal DNA sources due to sample contamination. These findings also suggest that composite statistics across cohorts, such as allele frequency or genotype counts, do not mask identity within genome-wide association studies. The implications of these findings are discussed.

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Crossref · 10.1371/journal.pgen.1000167

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Authors
Homer, N., Szelinger, S., Redman, M., Duggan, D., Tembe, W., Muehling, J., Pearson, J. V., Stephan, D. A., Nelson, S. F., & Craig, D. W.
Affiliations
  • Translational Genomics Research Institute (US)
  • University of California, Los Angeles (US)
Corresponding author
Craig, David W.
Venue
PLoS Genetics
Published
2008-08-29
Volume
4
Issue
8
Pages
e1000167
ISSN
  • 1553-7390 (ISSN-L)
  • 1553-7404
OpenAlex
W2040228409
Cited by
1,221
References
21
Citations by year
2026: 24 · 2025: 42 · 2024: 54 · 2023: 71 · 2022: 81 · 2021: 76 · 2020: 89 · 2019: 103 · 2018: 87 · 2017: 81 · 2016: 65 · 2015: 59 · 2014: 79 · 2013: 62 · 2012: 63
FWCI
34.85
Type
journal article
Language
en
Open access
Locations
  • PLoS Genetics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Wellcome Trust (076113)
  • Translational Genomics Research Institute
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (U01HL086528)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Forensic and Genetic Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic diversity and population structure
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
DNA mixture analysis, single nucleotide polymorphisms, forensic DNA identification, sample contamination, genome-wide association study
MeSH terms
Computer Simulation, Genetics, Medical, Genotype, Humans, Genome, Human, Oligonucleotide Array Sequence Analysis, Polymorphism, Single Nucleotide

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