Selection resulted in 7 DE genes, 223 DV genes and 1974 DW genes (FDR < 0.05). The identity of these genes, their raw and FDR adjusted P-values, module assignment and intramodular connectivity values are found in Table S1. Genes previously reported as significantly associated with preference consumption and DE by Mulligan et al. (2006) were flagged. Given the small number of DE genes, these were not considered further.