Figure 7.

Periodic Accumulation of NtmybA1 and A2 Transcripts during the Cell Cycle in Tobacco Shoot Apices.

Longitudinal sections of shoot apices were hybridized with digoxigenin-labeled antisense RNA probes of Nicta;CycB1;3, NtmybA1, and NtmybA2. They were counterstained with DAPI and viewed with bright field or epifluorescence. Arrowheads indicate mitotic cells with hybridization signals.

(A) and (B) Nicta;CycB1;3.

(C) and (D) NtmybA1.

(E) and (F) NtmybA2.

(A), (C), and (E) show transcript localization (bright field). (B), (D), and (F) show DAPI-stained nuclei (epifluorescence). Bar in (F) = 10 μm.