What it is
A complete and diverse set of human genomes is needed to build a pangenome reference and to see the full range of complex structural variation. This study sequenced 65 diverse human genomes into 130 haplotype-resolved assemblies, closing 92% of previous assembly gaps and reaching telomere-to-telomere status for 39% of chromosomes. It completely assembled and validated 1,246 centromeres, and resolved medically important loci such as the MHC, SMN1/SMN2, and AMY1/AMY2. Combined with the draft pangenome, the data lifted short-read genotyping to a median quality value of 45 and detected 26,115 structural variants per individual.
Why it matters
Many disease-relevant regions of the genome (the immune MHC, the SMN1/SMN2 locus behind spinal muscular atrophy, the amylase genes) have been unmappable, and resolving them across ancestries makes them available for study. Closing 92% of prior gaps and completing 1,246 centromeres converts previously dark regions into analyzable sequence. Lifting genotyping quality lets cheap short-read data see 26,115 structural variants per person, expanding what disease-association studies can examine.
Underlined numbers link to their source. Every metric and quoted figure is listed under Sources and data below.
Filed undergenomics, pangenome, structural variation, centromeres, telomere-to-telomere