Figure 10. Short deleted KIR haplotypes in gibbons.
Comparison of the gene organization of four gibbon KIR haplotypes with that of the predicted ancestral haplotype for all hominoid species. The haplotypes are from two divergent gibbon species: the white-cheeked gibbon (Nomascus leucogenys leucogenys: Nole) and the eatern hoolock gibbon (Hoolock hoolock leuconedys: Hoho). Note the absence of the KIR2DL4 framework gene in two haplotypes and of the KIR3DL framework gene in one haplotypes. Gibbon evolution has been accompanied by the deletion of genes from the KIR locus [83].