Table I. Global changes in the expression of genes grouped by functional categories.

The overall change of the expression of all genes grouped in a functional category (MapMan bin) was statistically evaluated. Only individual genes for which a statistically significant change was recorded in the microarray analysis were considered. The proportion is the ratio of genes considered in the analysis over the total number of genes present in the bin. For each bin, a P value (pval) was calculated to indicate if the genes considered behave in the same way. Only bins for which significant changes for ndufv1-1 and ndufs4 were found (P < 0.05) are displayed.

MapMan Bin	Direction	ndufv1-1		ndufs4
		Proportion	pval	Proportion	pval
Oxidative pentose phosphate	Down	0.53	0.011	0.47	0.001
Cell wall	Down	0.62	0.001	0.60	0.001
Lipid metabolism	Down	0.51	0.001	0.41	0.002
Hormone metabolism	Down	0.51	0.001	0.44	0.001
Polyamine metabolism	Down	0.67	0.001	0.44	0.022
Development	Down	0.40	0.02	0.39	0.001
Transport	Down	0.49	0.001	0.44	0.004
Wax	Down	0.88	0.001	0.94	0.001
Glutaredoxins	Down	0.63	0.001	0.66	0.001
Storage proteins	Down	0.44	0.003	0.44	0.006
Major CHO metabolism	Up	0.49	0.001	0.47	0.003
Glycolysis	Up	0.49	0.001	0.43	0.002
Fermentation	Up	0.64	0.004	0.64	0.001
TCA	Up	0.71	0.001	0.52	0.031
Mitochondrial electron transport/ATP synthesis	Up	0.68	0.001	0.47	0.002
Amino acid degradation	Up	0.51	0.001	0.43	0.001
Cofactor and vitamin metabolism	Up	0.57	0.001	0.47	0.001
Tetrapyrrole synthesis	Up	0.41	0.013	0.44	0.018
RNA	Up	0.45	0.002	0.43	0.018
Cell	Up	0.48	0.001	0.49	0.001
Metal acquisition	Up	0.44	0.108	0.67	0.001
Dismutases and catalases	Up	0.90	0.001	0.60	0.001