Differential expression of genes related to peroxisomal lipid metabolism. We reanalyzed of Affymetrix GeneChip U133v2.0 expression profiles of human and chimpanzee tissues  using the masking strategy stated in the text. We used standard F-tests (FDR-adjusted using the Benjamini and Hochberg approach) to test for differences in the distributions by species for the 5 tissues. The fold change (FC) of human (Hsa) versus chimpanzee (Ptr) geometric mean gene expression scores are provided. Differentially expressed genes (≥1.2 FC in either direction with a Student's t-test, two-tailed P-value ≤0.05 after Bonferroni correction) for a given tissue are highlighted in red (higher in human) or green (higher in chimpanzee). Probe sets with (i) F-tests yielding a ≤5% FDR and (ii) differential expression in at least one tissue are shown. All data are provided in Additional File 3.