Zhang et al. BMC Genomics 2011, 12:63 http://www.biomedcentral.com/1471-2164/12/63 Page 8 of 20 Figure 5 Functional categorization of the genes with significant transcriptional changes between the mutant and the wild-type. The genes were categorized based on Gene Ontology (GO) annotation and the proportion of each category is displayed based on A, cellular component, B, molecular function, or C, biological process.