Interactive exploration of biobank-scale ancestral recombination graphs with Lorax

Abstract Ancestral Recombination Graphs (ARGs) underpin analyses of natural selection, disease association, and population history but remain difficult to explore at biobank scale. We introduce Lorax, a GPU-accelerated, web-native platform for real-time visualization of population-scale ARGs. Lorax integrates genomic position, coalescent time, local genealogy, and metadata, enabling interactive exploration of ancestry and variant inheritance in biobank-scale datasets. Competing Interest Statement RBC is a paid consultant for International Responder Systems. Footnotes Funder Information Declared National Institute of General Medical Sciences, R35GM128932 Copyright The copyright holder for this preprint is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under a CC-BY 4.0 International license.