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Results of a tissue-enrichment analysis based on tissue expression data from (A) dogs and (B)humans, both with weight as a covariate (right panels) and without (left panels). In all cases, a plurality of genes are more highly expressed in the brain or cerebral cortex (purple bars). This was more than expected by chance using a hypergeometric test (dashed line, P = 0.05, without correcting for multiple comparisons) in all cases.
