Cited by 3,643Genomics and Phylogenetic StudiesGenomic variations and chromosomal abnormalitiesChromosomal and Genetic Variations

Merqury: reference-free quality, completeness, and phasing assessment for genome assemblies

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Rhie, Arang, Walenz, Brian P., Koren, Sergey, Phillippy, Adam M.·2020·Genome Biology

Published version of a preprint

Abstract

Recent long-read assemblies often exceed the quality and completeness of available reference genomes, making validation challenging. Here we present Merqury, a novel tool for reference-free assembly evaluation based on efficient k-mer set operations. By comparing k-mers in a de novo assembly to those found in unassembled high-accuracy reads, Merqury estimates base-level accuracy and completeness. For trios, Merqury can also evaluate haplotype-specific accuracy, completeness, phase block continuity, and switch errors. Multiple visualizations, such as k-mer spectrum plots, can be generated for evaluation. We demonstrate on both human and plant genomes that Merqury is a fast and robust method for assembly validation.

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  1. [12]Kronenberg ZN, et al. Extended haplotype phasing of de novo genome assemblies with FALCON-Phase. 2018. http://biorxiv.org/lookup/doi/10.1101/327064; 10.1101/327064. · DOI
  2. [14]Porubsky, D. et al. A fully phased accurate assembly of an individual human genome. 2019. http://biorxiv.org/lookup/doi/10.1101/855049; 10.1101/855049. · DOI

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Authors
Rhie, A., Walenz, B. P., Koren, S., & Phillippy, A. M.
Affiliations
National Institutes of Health (US)
Corresponding author
Rhie, Arang
Venue
Genome Biology
Published
2020-09-14
Volume
21
Issue
1
Pages
245-245
ISSN
  • 1465-6906 (ISSN-L)
  • 1474-760X
OpenAlex
W3085758516
Cited by
3,643
References
51
Citations by year
2026: 962 · 2025: 1057 · 2024: 851 · 2023: 551 · 2022: 152 · 2021: 56 · 2020: 13 · 2012: 1
FWCI
63.03
Type
journal article
Language
en
Open access
Locations
  • Genome biology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Human Genome Research Institute (Intramural Research Program)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Chromosomal and Genetic Variations
Keywords
genome assembly evaluation, assembly completeness, assembly accuracy, haplotype phasing, trio analysis, long-read sequencing, human genome, plant genome
MeSH terms
Humans, Software, Genome, Human, Arabidopsis, Genome, Plant, Genomics

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