Fig. 4. Sporogenous cell progenies in etfβ fail to acquire meiotic fate under N-free conditions.
a TBO-stained transverse sections of anthers of etfβ (2 N) and etfβ (N-free). The arrows indicate abnormal apoptosis in the center of locules. SCL sporogenous cell-like cell, SCP sporogenous cell progeny. Scale bars, 5 µm. b In situ expression analysis of MEL1 in etfβ (2 N) and etfβ (N-free) anthers. Scale bars, 5 µm. c In situ expression analysis of REC8 in etfβ (2 N) and etfβ (N-free) anthers. Scale bars, 5 µm.