Figure 3

HLA allele call success rate for 68 historical aDNA samples. Percentage of alleles called at each individual HLA locus calculated for the whole set of historical samples (N = 68). Allele calls are reported at two different level of resolution 2nd field (4-digit) and 1st field (2-digit) levels. ‘No call possible’ represents the fraction of cases where the allele call was not possible or allele calls were ambiguous.