WMISH detection of em-ago2 . (A) General view of the germinal layer. The insets show details of EdU + em-ago2 cells (open arrowheads) and EdU + em-ago2+ cells (filled arrowheads) after a five hour, 50 μM EdU pulse. (B) Early brood capsule bud. (C) Protoscolex bud; colors are coded as in Figure 5A. (D) Late protoscolex development. (E) Detail of a sucker from a protoscolex in late development, showing that em-ago2 expression is not restricted to the base; colors are coded as in Figure 5A. Abbreviations are as in Figure 2. Bars represent 10 μm in A1 and A2, and 40 μm in all other panels.