Mapping Copy Number Variation by Population Scale Genome Sequencing

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Mapping Copy Number Variation by Population Scale Genome Sequencing

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Title: Mapping Copy Number Variation by Population Scale Genome Sequencing
Author: Mills, Ryan Edward; Handsaker, Robert E; Korn, Joshua; Nemesh, James; Shi, Xinghua; Lee, Charles; McCarroll, Steven A.; Altshuler, David Matthew; Gabriel, Stacey B.; Lander, Eric Steven; Ambrogio, Lauren; Bloom, Toby; Cibulskis, Kristian; Fennell, Tim J.; Jaffe, David B.; Shefler, Erica; Sougnez, Carrie L.; Daly, Mark Joseph; DePristo, Mark A.; Ball, Aaron D.; Banks, Eric; Bloom, Toby; Browning, Brian L.; Garimella, Kiran V.; Grossman, Sharon Rachel; Handsaker, Robert E; Hanna, Matt; Hartl, Chris; Kernytsky, Andrew M.; Li, Heng; Maguire, Jared R.; McKenna, Aaron; Philippakis, Anthony Andrew; Poplin, Ryan E.; Price, Alkes; Rivas, Manuel A.; Sabeti, Pardis Christine; Schaffner, Stephen; Shlyakhter, Ilya; DePristo, Mark A.; Wilkinson, Jane

Note: Order does not necessarily reflect citation order of authors.

Citation: Mills, Ryan E., Robert E. Handsaker, Joshua Korn, James Nemesh, Xinghua Shi, Charles Lee, Steven A. McCarroll et al. 2011. Mapping copy number variation by population scale genome sequencing. Nature 470(7332): 59-65.
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Abstract: Genomic structural variants (SVs) are abundant in humans, differing from other forms of variation in extent, origin and functional impact. Despite progress in SV characterization, the nucleotide resolution architecture of most SVs remains unknown. We constructed a map of unbalanced SVs (that is, copy number variants) based on whole genome DNA sequencing data from 185 human genomes, integrating evidence from complementary SV discovery approaches with extensive experimental validations. Our map encompassed 22,025 deletions and 6,000 additional SVs, including insertions and tandem duplications. Most SVs (53%) were mapped to nucleotide resolution, which facilitated analysing their origin and functional impact. We examined numerous whole and partial gene deletions with a genotyping approach and observed a depletion of gene disruptions amongst high frequency deletions. Furthermore, we observed differences in the size spectra of SVs originating from distinct formation mechanisms, and constructed a map of SV hotspots formed by common mechanisms. Our analytical framework and SV map serves as a resource for sequencing-based association studies.
Published Version: doi:10.1038/nature09708
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