Figure 1.

Over-expression of miR172 in transgenic tomato alters flower and fruit development. (A) Wild-type flowers show green sepals (s), yellow petals (p) and yellow stamens (st). (B) Wild-type mature fruit with green sepals attached. (C) Transgenic flowers showing yellowish sepals (s) and underdeveloped stamens (st). (D) Seedless fruit developed from flowers of (C) with dried, sepal-converted petals (scp) attached. (E) Transgenic flowers showing fully formed ovary (o) and incompletely developed style (sty) and stigma (sti). (F) and (G) Seedless fruit developed from flowers of (E) with no sepals attached but with ectopic ovaries (eo) inside the fruit. (H) A fruit-in-fruit developed from flowers of (E). (A) and (C) share the same scale bar, (B), (D), and (F) to (H) share the same scale bar.