Fig. 4. SlMBP3 and SlAGL11 expression pattern throughout fruit development.

a SlMBP3 and SlAGL11 expression in flower and developing fruit was investigated using transgenic tomato lines expressing the GUS reporter gene driven by the promoter of SlMBP3 or SlAGL11. DPA refers to days post-anthesis; Orange arrows point to the placenta and yellow arrows to funiculus. Scale bar = 1 mm. b Expression pattern of SlAGL11 and SlMBP3 as visualized by the GUS reporter under the control of SlAGL11 or SlMBP3 promoters in pollination-dependent and auxin-induced fruit at 20-DPA stage. Unfertilized flowers were emasculated, and the fruit set was induced either by manual pollination or by exogenous auxin treatment. Orange arrows point to the absence or presence of seeds in parthenocarpic and seeded fruit, respectively. Scale bar = 5 mm.