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Expression of gibberellin (GA) biosynthesis genes is located in seeds shortly upon fertilization.
(a) Expression of GA20ox1-GUS (Desgagne-Penix et al., 2005) in seeds at 1 dpa.
(b) Expression of GA20ox2-GUS (Frigerio et al., 2006) in seeds at 1, 2 or 3 dpa. ch, chalaza; e, embryo; es, embryo sac; f, funiculus; m, micropyle; pt, pollen tube. Scale bar represents 40 μm.
