TY - JOUR A1 - Aganezov, Sergey A1 - Goodwin, Sara A1 - Sherman, Rachel M. A1 - Sedlazeck, Fritz J. A1 - Arun, Gayatri A1 - Bhatia, Sonam A1 - Lee, Isac A1 - Kirsche, Melanie A1 - Wappel, Robert A1 - Kramer, Melissa A1 - Kostroff, Karen A1 - Spector, David L. A1 - Timp, Winston A1 - McCombie, W. Richard A1 - Schatz, Michael C. T1 - Comprehensive analysis of structural variants in breast cancer genomes using single-molecule sequencing Y1 - 2020/09/01 JF - Genome Research JO - Genome Research SP - 1258 EP - 1273 DO - 10.1101/gr.260497.119 VL - 30 IS - 9 UR - http://genome.cshlp.org/content/30/9/1258.abstract N2 - Improved identification of structural variants (SVs) in cancer can lead to more targeted and effective treatment options as well as advance our basic understanding of the disease and its progression. We performed whole-genome sequencing of the SKBR3 breast cancer cell line and patient-derived tumor and normal organoids from two breast cancer patients using Illumina/10x Genomics, Pacific Biosciences (PacBio), and Oxford Nanopore Technologies (ONT) sequencing. We then inferred SVs and large-scale allele-specific copy number variants (CNVs) using an ensemble of methods. Our findings show that long-read sequencing allows for substantially more accurate and sensitive SV detection, with between 90% and 95% of variants supported by each long-read technology also supported by the other. We also report high accuracy for long reads even at relatively low coverage (25×–30×). Furthermore, we integrated SV and CNV data into a unifying karyotype-graph structure to present a more accurate representation of the mutated cancer genomes. We find hundreds of variants within known cancer-related genes detectable only through long-read sequencing. These findings highlight the need for long-read sequencing of cancer genomes for the precise analysis of their genetic instability. ER -