Fig. 3.

Examples of strong concordance between expression levels measured using the multispecies arrays from Blekhman et al., 2008, and using the RNAseq data from Blekhman et al., 2009. Six genes are displayed, chosen at random from the data of Blekhman et al., 2008, conditional only on a significant (FDR < 0.05) difference in gene expression level between humans and chimpanzees (expression levels in the rhesus macaques were not considered for the selection process). For each gene, the expression estimate (mean ± s.e.m) from the multispecies array (left ) and normalized expression level (mean ± s.e.m) from the RNAseq data (right ) are shown for each species (H human, C chimpanzee, R rhesus macaque). Each study used different individual samples, yet the patterns are consistent across studies, suggesting that the relative estimates of gene expression levels based on six individuals from each species are mostly stable.