Journal
NATURE BIOTECHNOLOGY
Volume 29, Issue 1, Pages 51-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/nbt.1739
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Funding
- US National Institutes of Health (NIH)
- NIH [U54]
- Siebel Foundation
- China Scholarship Council
- NATIONAL CANCER INSTITUTE [U54CA151459] Funding Source: NIH RePORTER
- OFFICE OF THE DIRECTOR, NATIONAL INSTITUTES OF HEALTH [DP1OD000251] Funding Source: NIH RePORTER
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Conventional experimental methods of studying the human genome are limited by the inability to independently study the combination of alleles, or haplotype, on each of the homologous copies of the chromosomes. We developed a microfluidic device capable of separating and amplifying homologous copies of each chromosome from a single human metaphase cell. Single-nucleotide polymorphism (SNP) array analysis of amplified DNA enabled us to achieve completely deterministic, whole-genome, personal haplotypes of four individuals, including a HapMap trio with European ancestry (CEU) and an unrelated European individual. The phases of alleles were determined at similar to 99.8% accuracy for up to similar to 96% of all assayed SNPs. We demonstrate several practical applications, including direct observation of recombination events in a family trio, deterministic phasing of deletions in individuals and direct measurement of the human leukocyte antigen haplotypes of an individual. Our approach has potential applications in personal genomics, single-cell genomics and statistical genetics.
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