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. 1998 Mar 3;95(5):2021–2026. doi: 10.1073/pnas.95.5.2021

Figure 1.

Figure 1

Examples of reporter gene expression (blue) in various gene trap and enhancer trap lines illustrating cell type-specific expression, expression in prepatterns, and subcellular gene trap localization. Seedlings were grown in continuous light for 7 days, stained for GUS activity, cleared in 70% ethanol, and mounted for differential interference contrast microscopy in 25% glycerol (12, 42). (A) Nuclear staining (arrow) in roots from heterozygous prolifera/+ plants. (B) Meristem staining in the shoot. (C) GUS expression at the basal boundaries of leaf primordia. (D) GUS expression in columella initials in the root. (E) GUS expression in root cap cells. (F) GUS expression in immature trichomes. (G) GUS expression in trichome accessory cells.