Table 1. rDNA copy number affects genes related to energy metabolism.

	Category	Description	N	P-value
male	GO: 0031966	Mitochondrial membrane	46	2.1E−10
	GO: 0006118	Electron transport	44	2.3E−05
	GO: 0016298	Lipase activity	16	1.1E−03
	GO: 0006629	Lipid metabolic process	53	1.4E−03
	GO: 0006631	Fatty acid metabolism	9	1.8E−02
female	GO: 0031966	Mitochondrial membrane	38	7.2E−12
	GO: 0006118	Electron transport	38	1.4E−09

Gene Ontogeny (GO) categories whose genes are disproportionally represented among those with expression significantly altered in males (top) and females (bottom). P-values are corrected for multiple testing using the modified Bonferroni correction of the statistical software package GeneMerge.