NUMT content across homologous great ape chromosomes in primary haplotype assemblies. Chromosomes were labeled based on their human homolog numbers (HSA). (A) Length distribution of NUMT per species. (B) The number of NUMTs per chromosome per species. (C) NUMT kilobases per chromosome per species (NUMT content). (D) Number of NUMTs per base pair for each chromosome and species. (E) The fraction of bases annotated as NUMTs among all bases for each chromosome and species. Human Chromosome 2 was divided at the site of an ancient fusion (∼114 Mb), and each arm was assigned to their homologs HSA2a and HSA2b in great apes. The gorilla chromosomes homologous to HSA5 and HSA17 exchanged genetic material and resulted in two combinations referred to as Chr 17x5 and Chr 5x17. They were considered separately from Chr 5 and Chr 17 in this analysis. NUMT content for the alternate haplotype assemblies is included in Supplemental Figure S2.