Fig. 2. Linkage disequilibrium and homozygosity in gorillas.
(A) LD decay (15) in gorilla and human populations. Human samples are Utah residents with European ancestry (CEU) or Yoruba in Ibadan, Nigeria (YRI). (B) Mean per-sample genome fractions found in homozygous tracts. Open bars show total fractions for mountain (Gbb), eastern lowland (Gbg), Cross River (Ggd), and western lowland (Ggg) gorillas; solid bars show fractions in tracts of length 2.5 to 10 Mb (gorillas) or 2.5 to 10 cM in an Altai Neandertal and two human individuals [Karitiana (Kar) and Papuan (Pap)] (19). Error bars are ±1 SD.