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Fully phased human genome assembly without parental data using single-cell strand sequencing and long reads

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Item Type:Article
Title:Fully phased human genome assembly without parental data using single-cell strand sequencing and long reads
Creators Name:Porubsky, D., Ebert, P., Audano, P.A., Vollger, M.R., Harvey, W.T., Marijon, P., Ebler, J., Munson, K.M., Sorensen, M., Sulovari, A., Haukness, M., Ghareghani, M., Lansdorp, P.M., Paten, B., Devine, S.E., Sanders, A.D., Lee, C., Chaisson, M.J.P., Korbel, J.O., Eichler, E.E. and Marschall, T.
Abstract:Human genomes are typically assembled as consensus sequences that lack information on parental haplotypes. Here we describe a reference-free workflow for diploid de novo genome assembly that combines the chromosome-wide phasing and scaffolding capabilities of single-cell strand sequencing with continuous long-read or high-fidelity sequencing data. Employing this strategy, we produced a completely phased de novo genome assembly for each haplotype of an individual of Puerto Rican descent (HG00733) in the absence of parental data. The assemblies are accurate (quality value > 40) and highly contiguous (contig N50 > 23 Mbp) with low switch error rates (0.17%), providing fully phased single-nucleotide variants, indels and structural variants. A comparison of Oxford Nanopore Technologies and Pacific Biosciences phased assemblies identified 154 regions that are preferential sites of contig breaks, irrespective of sequencing technology or phasing algorithms.
Keywords:Algorithms, DNA Sequence Analysis, Haplotypes, High-Throughput Nucleotide Sequencing, Human Genome, Parents, Puerto Rico, Single-Cell Analysis
Source:Nature Biotechnology
ISSN:1087-0156
Publisher:Nature Publishing Group
Volume:39
Number:3
Page Range:302-308
Date:March 2021
Official Publication:https://doi.org/10.1038/s41587-020-0719-5
PubMed:View item in PubMed

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