Genome-wide summary of weights used in meta-imputation
(A and B) UK Biobank samples were meta-imputed against the 1000G phase 3 panel and the TOPMed release 2 panel. The figures display the local weights on the TOPMed panel from the weight-estimation step, where red indicates a preference for TOPMed and blue indicates a preference for 1000G. (A) corresponds to the analysis of a sample haplotype with South Asian ancestry, where both the 1000G panel and the TOPMed panel were favored in substantial portions of the genome. (B) corresponds to the analysis of a sample haplotype with European ancestry, where the TOPMed panel was nearly always favored.