Different structural variant prediction tools yield considerably different results in Caenorhabditis elegans

Kyle Lesack, Grace M. Mariene, Erik C. Andersen, James D. Wasmuth*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The accurate characterization of structural variation is crucial for our understanding of how large chromosomal alterations affect phenotypic differences and contribute to genome evolution. Whole-genome sequencing is a popular approach for identifying structural variants, but the accuracy of popular tools remains unclear due to the limitations of existing benchmarks. Moreover, the performance of these tools for predicting variants in non-human genomes is less certain, as most tools were developed and benchmarked using data from the human genome. To evaluate the use of long-read data for the validation of short-read structural variant calls, the agreement between predictions from a short-read ensemble learning method and long-read tools were compared using real and simulated data from Caenorhabditis elegans. The results obtained from simulated data indicate that the best performing tool is contingent on the type and size of the variant, as well as the sequencing depth of coverage. These results also highlight the need for reference datasets generated from real data that can be used as ‘ground truth’ in benchmarks.

Original languageEnglish (US)
Article numbere0278424
JournalPloS one
Volume17
Issue number12 December
DOIs
StatePublished - Dec 2022

Funding

JDW; 04589-2020; The Natural Sciences and Engineering Research Council of Canada; https://www.nserc-crsng.gc.ca JDW; 06239-2015; The Natural Sciences and Engineering Research Council of Canada; https://www.nserc-crsng.gc.ca JDW; 413888-2012; The Natural Sciences and Engineering Research Council of Canada; https://www.nserc-crsng.gc.ca JDW; 2016F013R; Results Driven Agricultural Research (Alberta); https://rdar.ca/ECA; no number; National Science Foundation (USA); https://www.nsf.gov/The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. We thank Dr. Stephen Doyle and the other, anonymous reviewers for their comments.

ASJC Scopus subject areas

  • General

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