Confocal laser-scanning images of GFP expression in the outer integument cell layers of line KS149. GFP expression in the o.i.2 (A) and the o.i.1 (B) of line KS149. The embryo was at globular stage in this seed. (C) Overlay image of (A) and (B), cell walls of the o.i.2 are coloured in white, cell walls of the o.i.1 in dark grey. Scalebars: 20 μm.