AtWhy2 is associated with mitochondrial DNA. A. Position of the amplified regions on the mitochondrial genome. B. PCR amplification of mtDNA regions following immunoprecipitation on crude mitochondrial extracts of the indicated genotypes. Inputs represent 20% of the total DNA used in the immunoprecipitation. Representative regions are shown here, other amplified regions gave similar results showing specific interaction with AtWhy2.