Figure 7.

Gene expression from isolated root hairs. A, Scatterplot comparing transcript accumulation from isolated Arabidopsis root hairs and from the FACS-purified Arabidopsis COBL9::GFP line. B, Bar graph displaying the number of root hair-expressed (HAIR) genes from each of six species, subdivided by genes present in conserved families (black bars), nonconserved families (hatched bars), and species-specific families (white bars). C, Bar graph showing the number of families that contain a root hair-expressed (HAIR) gene (white bars) or a root-expressed gene (black bars) from Arabidopsis, rice, cucumber, soybean, tomato, and/or maize among the 17,042 total GreenPhyl families that possess at least one gene from each species.