Fig. 4. Whole plant defects in zfl double mutant plants. (A) Illustration of wild type (left) and double mutant (right). (B) A wild-type tassel. (C) Apex of a zfl double mutant plant showing several `tassel ears'. (D) Diagrammatic illustration of apical region of an individual double mutant plant showing complex axillary structures with husk leaves, multiple ears, and male (yellow) and female (brown) florets often subtended by husk leaves. (E) Wild type (left) and two double mutant (right) ears from sibling plants. Arrowhead indicates a single kernel on a double mutant ear.