Subcellular localization and functional categories of the 1087 differentially expressed unigenes between the MES-treated and the mock-treated rapeseed plants. (A) Subcellular localization, (B) Functional categories, (C) Enrichment analysis of the functional categories list in B. The scale bar indicates -log (P-value), with highly enriched categories in red color, and invalid values in gray, whereas the P-value was calculated according to a hypothesis test using cumulative hypergeometric distribution. Left panel, enrichment analysis of all the unigenes in functional categories listed in B, except for those in unclassified category; the right panels, enrichment analysis of the sub-categories from metabolism and cellular transport (blue rectangles), respectively. The prominent enriched sub-categories were circled in black ellipses.