Table IV. Representation of marker genes for mitochondrial stress response and organellar dysfunction.

χ² analysis is shown compared with a random distribution. exp, Expected; obs, observed.

Sample	Changes versus Wild-Type HL	Present in Category	Observed Differential to Wild-Type HL	Expected Differential to Wild-Type HL	P	Ratio obs-exp
Mitochondrial stress response genes
wrky40 HL	4,239	26	17	6.5	<0.001	2.6
WRKY40 OE1 HL	805	26	7	1.2	<0.001	5.7
wrky63 HL	253	26	2	0.4	<0.01	5.2
WRKY63 OE1 HL	1,688	26	13	2.6	<0.001	5.0
Mitochondrial and chloroplast dysfunction
wrky40 HL	4,239	13	10	3.2	<0.001	3.1
WRKY40 OE1 HL	805	13	3	0.6	<0.001	4.9
wrky63 HL	253	13	2	0.2	<0.001	10.3
WRKY63 OE1 HL	1,688	13	7	1.3	<0.001	5.4
Mitochondrial dysfunction only
wrky40 HL	4,239	12	3	3.0	<0.05	1.0
WRKY40 OE1 HL	805	12	1	0.6	<0.05	1.8
wrky63 HL	253	12	3	0.2	<0.001	16.8
WRKY63 OE1 HL	1,688	12	1	1.2	<0.05	0.8
Chloroplast dysfunction only
wrky40 HL	4,239	14	3	3.5	<0.05	0.9
WRKY40 OE1 HL	805	14	2	0.7	<0.05	3.0
wrky63 HL	253	14	0	0.2	<0.05	0.0
WRKY63 OE1 HL	1,688	14	1	1.4	<0.05	0.7