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Haoyu Cheng
2019-12-28 04:55:07 -05:00
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README.md
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## Introduction ## Introduction
Hifiasm is an ultrafast haplotype-resolved de novo assembler based on PacBio Hifi reads. Unlike most existing assemblers, hifiasm starts from uncollapsed genome. Thus, it is able to keep the haplotype information as much as possible. The input of hifiasm is the PacBio Hifi reads in fasta/fastq format, and its output consists of: Hifiasm is an ultrafast haplotype-resolved de novo assembler based on PacBio Hifi reads. Unlike most existing assemblers, hifiasm starts from uncollapsed genome. Thus, it is able to keep the haplotype information as much as possible. The input of hifiasm is the PacBio Hifi reads in fasta/fastq format, and its output consists of:
1. haplotype-resolved assembly [unitig][unitig] graph in [GFA][gfa] format ([unitig][unitig] graph). 1. Haplotype-resolved assembly [unitig][unitig] graph in [GFA][gfa] format (hifiasm.asm.utg.gfa in dafault).
2. haplotype-resolved assembly [unitig][unitig] graph in [GFA][gfa] format without small bubbles. 2. Haplotype-resolved assembly [unitig][unitig] graph in [GFA][gfa] format without small bubbles (hifiasm.asm.wsb.utg.gfa in dafault). Small bubbles might be caused by somatic mutations, which are useless for some applications.
3. primary assembly [contig][unitig] graph in [GFA][gfa] format. 3. Primary assembly [contig][unitig] graph in [GFA][gfa] format (hifiasm.asm.utg.gfa in dafault).
4. alternate assembly [contig][unitig] graph in [GFA][gfa] format. 4. Plternate assembly [contig][unitig] graph in [GFA][gfa] format (hifiasm.asm.alter.ctg.gfa in dafault).
5. haplotype-aware error corrected reads 5. Haplotype-aware error corrected reads in fasta format (hifiasm.asm.ec.fa in dafault).
6. All-to-all overlaps in [paf][paf] format (hifiasm.asm.paf).
So far hifiasm is still in early development stage, it will output phased chromosome-level high-quality assembly in the near future. So far hifiasm is still in early development stage, it will output phased chromosome-level high-quality assembly in the near future.
Hifiasm is a standalone and lightweight assembler, which does not need external libraries (except zlib). For large genomes, it can generate high-quality assembly in a few hours. Hifiasm has been tested on the following datasets: Hifiasm is a standalone and lightweight assembler, which does not need external libraries (except zlib). For large genomes, it can generate high-quality assembly in a few hours. Hifiasm has been tested on the following datasets:
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[unitig]: http://wgs-assembler.sourceforge.net/wiki/index.php/Celera_Assembler_Terminology [unitig]: http://wgs-assembler.sourceforge.net/wiki/index.php/Celera_Assembler_Terminology
[gfa]: https://github.com/pmelsted/GFA-spec/blob/master/GFA-spec.md [gfa]: https://github.com/pmelsted/GFA-spec/blob/master/GFA-spec.md
[paf]: https://github.com/lh3/miniasm/blob/master/PAF.md
## Getting Help ## Getting Help
The `-h` option of hifiasm provides detailed description of options. If you have further questions, The `-h` option of hifiasm provides detailed description of options. If you have further questions,