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Fig. 2. Expression patterns of the novel genes in anterior ectoderm during normal development. XAgr2 expression at the midneurula stage 15 (A), tailbud stages 28 (B), and 32 (C,D: lateral view). At the stage 32, XAgr2 is expressed in the cells surrounding the cement gland and in the otic vesicle (D, arrowhead). Ras-dva expression at the midneurula stage 15 (E), stage 22 (F), and tailbud stage 25 (F,H: lateral view). At stage 25, Ras-dva expression disappears from the center of developing cement gland, remains in the hatching gland, and starts in the lateral parts of neural tube (H, arrowheads). Nlo expression at the midneurula stage 16 (I), tailbud stages 24 (J), and 27 (K,L: lateral view). At stage 24, Nlo is expressed in the hatching gland (J). At stage 27, Nlo is also expressed in the stripe of cells above the cement gland (K,L, arrows). At stage 32, Nlo is expressed in the otic vesicles (L, arrowhead). |
