Fig. 3. Cytokinesis-related genes are required for endosperm cellularisation. (A,C,E,G) Both the embryo and the MCE, have defective cytokinesis in the mutants hinkel (A) open house (C) runkel (E) and pleiade (G). (B,D,F,H) Corresponding confocal sections of the PEN with obvious defects in cellularisation. Scale bars: 20 µm.