Table 2. Summary of chimpanzee exome data.

	Central	Eastern	Western
Autosome 20-Mb sites
Sample size	24	22	12
No. synonymous SNPs	33,941	21,871	10,217
No. nonsynonymous SNPs	25,290	16,664	8,567
X chromosome 0.89-Mb sites
Sample size	21	19	9
No. synonymous SNPs	684	492	202
No. nonsynonymous SNPs	471	323	150

The summary of chimpanzee exome data from Bataillon et al. (2015) is shown. As some of the sequenced chimpanzees were males, the sample size (number of haploid chromosomes sequenced) varies between the autosomes and X chromosomes. The number of sites represents the number of sequenced sites where SNPs where potentially called. The orientation of SNPs was inferred via parsimony using the human reference genome, as well as the orangutan reference genome. Further details on the SNP, divergence calling, and SNP orientation are available in Hvilsom et al. (2012).