Mapping and Characterization of Structural Variation in 17,795 Human Genomes
Article Mapping and characterization of structural variation in 17,795 human genomes https://doi.org/10.1038/s41586-020-2371-0 Haley J. Abel1,2,68, David E. Larson1,2,68, Allison A. Regier1,3, Colby Chiang1, Indraniel Das1, Krishna L. Kanchi1, Ryan M. Layer4,5, Benjamin M. Neale6,7,8, William J. Salerno9, Received: 29 December 2018 Catherine Reeves10, Steven Buyske11, NHGRI Centers for Common Disease Genomics*, Accepted: 18 May 2020 Tara C. Matise12, Donna M. Muzny9, Michael C. Zody10, Eric S. Lander6,13,14, Susan K. Dutcher1,2, Nathan O. Stitziel1,2,3 & Ira M. Hall1,2,3 ✉ Published online: 27 May 2020 Check for updates A key goal of whole-genome sequencing for studies of human genetics is to interrogate all forms of variation, including single-nucleotide variants, small insertion or deletion (indel) variants and structural variants. However, tools and resources for the study of structural variants have lagged behind those for smaller variants. Here we used a scalable pipeline1 to map and characterize structural variants in 17,795 deeply sequenced human genomes. We publicly release site-frequency data to create the largest, to our knowledge, whole-genome-sequencing-based structural variant resource so far. On average, individuals carry 2.9 rare structural variants that alter coding regions; these variants afect the dosage or structure of 4.2 genes and account for 4.0–11.2% of rare high-impact coding alleles. Using a computational model, we estimate that structural variants account for 17.2% of rare alleles genome-wide, with predicted deleterious efects that are equivalent to loss-of-function coding alleles; approximately 90% of such structural variants are noncoding deletions (mean 19.1 per genome).
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