35S:NTAP:AtCTF7∆B male meiocytes exhibit defective meiotic chromosome segregation. (A-D) and (I-L) Wild type meiocytes. (E-H) and (M-P) 35S:NTAP:AtCTF7∆B meiocytes. A, E pachytene; B, F diakinesis; C, G metaphase I; D, H telophase I; I, M prophase II; J, N metaphase II; K, O anaphase II; L, P telophase II. Lagging chromosomes and/or chromosome fragments are denoted with arrows. Meiotic chromosomes are stained by 4’, 6-diamidino-2-phenylindole (DAPI). Scale bar = 10 μm.