Figure 6
Expression of pby-1 in the regio germinalis. All embryos are oriented with anterior to the left and represent ventral views. (A) Stage 0.1 embryo. (B) Stage 0.3 embryo. (C) Stage 0.5 embryo. Segmental expression in the regio germinalis appears. (D) Early stage 1 embryo. Left arrow marks faint expression of pby-1 in the antennal segment; right arrow marks faint expression in the second trunk segment (T2). (E) Late stage 1 embryo. (F) Early stage 1.1 embryo. (G) Late stage 1.1 embryo. (H) Stage 0.5 embryo (cf. also (C)). Critical stage in which pby-1 is prominently transcribed in every other segment in the regio germinalis. Asterisks mark upcoming expression in the mandibular and postmaxillary segment. (A´) to (D´) DAPI counter-staining of the embryos shown in (A) to (D). Abbreviations as in Figure 1.