Nature Communications (Jan 2025)

Small variant benchmark from a complete assembly of X and Y chromosomes

  • Justin Wagner,
  • Nathan D. Olson,
  • Jennifer McDaniel,
  • Lindsay Harris,
  • Brendan J. Pinto,
  • David Jáspez,
  • Adrián Muñoz-Barrera,
  • Luis A. Rubio-Rodríguez,
  • José M. Lorenzo-Salazar,
  • Carlos Flores,
  • Sayed Mohammad Ebrahim Sahraeian,
  • Giuseppe Narzisi,
  • Marta Byrska-Bishop,
  • Uday S. Evani,
  • Chunlin Xiao,
  • Juniper A. Lake,
  • Peter Fontana,
  • Craig Greenberg,
  • Donald Freed,
  • Mohammed Faizal Eeman Mootor,
  • Paul C. Boutros,
  • Lisa Murray,
  • Kishwar Shafin,
  • Andrew Carroll,
  • Fritz J. Sedlazeck,
  • Melissa Wilson,
  • Justin M. Zook

DOI
https://doi.org/10.1038/s41467-024-55710-z
Journal volume & issue
Vol. 16, no. 1
pp. 1 – 7

Abstract

Read online

Abstract The sex chromosomes contain complex, important genes impacting medical phenotypes, but differ from the autosomes in their ploidy and large repetitive regions. To enable technology developers along with research and clinical laboratories to evaluate variant detection on male sex chromosomes X and Y, we create a small variant benchmark set with 111,725 variants for the Genome in a Bottle HG002 reference material. We develop an active evaluation approach to demonstrate the benchmark set reliably identifies errors in challenging genomic regions and across short and long read callsets. We show how complete assemblies can expand benchmarks to difficult regions, but highlight remaining challenges benchmarking variants in long homopolymers and tandem repeats, complex gene conversions, copy number variable gene arrays, and human satellites.