Meiotic progression from middle prophase (half-moon stage) to tetrad formation in two anthers of WT treated with 200 nM oryzalin (left) versus cycb3;1/− treated with 200 nM oryzalin (right). Tubulin (RFP) is highlighted in white. While microtubules are not affected in WT, the spindle length is reduced in treated cycb3;1/−. See also Fig. 9, D and E. The interval between image acquisitions is 10 min. Scale bar, 10 µm. Frame rate is 12 frames per second.
