Publication Date
5-1-2022
Journal
Nature Biotechnology
DOI
10.1038/s41587-021-01158-1
PMID
35132260
PMCID
PMC9117392
PubMedCentral® Posted Date
8-7-2022
PubMedCentral® Full Text Version
Post-Print
Published Open-Access
yes
Keywords
Genome, Human, Haplotypes, Humans, Sequence Analysis, DNA
Abstract
The repetitive nature and complexity of some medically relevant genes poses a challenge for their accurate analysis in a clinical setting. The Genome in a Bottle Consortium has provided variant benchmark sets, but these exclude nearly 400 medically relevant genes due to their repetitiveness or polymorphic complexity. Here, we characterize 273 of these 395 challenging autosomal genes using a haplotype-resolved whole-genome assembly. This curated benchmark reports over 17,000 single-nucleotide variations, 3,600 insertions and deletions and 200 structural variations each for human genome reference GRCh37 and GRCh38 across HG002. We show that false duplications in either GRCh37 or GRCh38 result in reference-specific, missed variants for short- and long-read technologies in medically relevant genes, including CBS, CRYAA and KCNE1. When masking these false duplications, variant recall can improve from 8% to 100%. Forming benchmarks from a haplotype-resolved whole-genome assembly may become a prototype for future benchmarks covering the whole genome.
Included in
Genetic Phenomena Commons, Genetic Processes Commons, Internal Medicine Commons, Medical Genetics Commons
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