Haplotype-resolved de novo assembly using phased assembly graphs with hifiasm.
Haplotype-resolved de novo assembly using phased assembly graphs with hifiasm.
复制标题
单体型解析的从头组装使用hifiasm分阶段组装图。
DOI:
10.1038/s41592-020-01056-5
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发表时间:
2021-03
期刊:
影响因子:
48
通讯作者:
Li H
中科院分区:
文献类型:
--
作者:
Cheng H;Concepcion GT;Feng X;Zhang H;Li H
Haplotype-resolved de novo assembly is the ultimate solution to the study of sequence variations in a genome. However, existing algorithms either collapse heterozygous alleles into one consensus copy or fail to cleanly separate the haplotypes to produce high-quality phased assemblies. Here we describe hifiasm, a de novo assembler that takes advantage of long high-fidelity sequence reads to faithfully represent the haplotype information in a phased assembly graph. Unlike other graph-based assemblers that only aim to maintain the contiguity of one haplotype, hifiasm strives to preserve the contiguity of all haplotypes. This feature enables the development of a graph trio binning algorithm that greatly advances over standard trio binning. On three human and five non-human datasets, including California redwood with a ~30-gigabase hexaploid genome, we show that hifiasm frequently delivers better assemblies than existing tools and consistently outperforms others on haplotype-resolved assembly.
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