Fig. 1: Post-mortem DNA damage patterns measured on reads mapping to the Xci chromosome.

a Fragment length distribution (nt: nucleotides; relative frequency in arbitrary units). b Substitution percentage of the first 25 nucleotides of R2 reads (5’ C to T substitutions, left panel), complementary to the last 25 nucleotides of R1 reads (3’ G to A substitutions, right panel) of the 13 historical genomes (blue lines, light to dark gradient from the oldest to the youngest) and three modern Xci strains (red lines, light to dark gradient from the oldest to the youngest). Source data are provided as a Source Data file.