Fig. 5. Comparison of silique length and morphology in various mutant backgrounds, 7 days post-anthesis. (A) Unpollinated Ler pistil (up), pollination-induced Ler silique (p) and fwf parthenocarpic silique. (B) ful-7 and ful-7 fwf double mutants following pollination (p) or emasculation (up) in ful-7 fwf. The inset labeled ‘p’ shows continued replum development and replum cell expansion (arrow) in pollinated ful-7. The inset marked ‘up’ shows the absence of continued replum growth in emasculated and unpollinated ful-7 fwf pistils. (C) Silique development in the gai-1 background. (D) Silique development when fwf is combined with gai-1 and ats. (E-I) Sections of silique tissues 7 days post-anthesis. (E) Unpollinated gai-1. (F) Parthenocarpic gai-1 fwf. (G) Pollinated gai-1 fwf. (H) Parthenocarpic pop1 ats fwf with increased mesocarp cell division. (I) Parthenocarpic gai-1 ats fwf where ats restores anticlinal mesocarp cell division. Mesocarp cells adjacent to vascular bundles remain enlarged (arrowhead). Abbreviations as for figure 2. Scale bars: A-D, 3 mm; E-I, 50 µm.