Fig. 8. Phenotypes of At-Notch and At-Su(H) RNAi embryos are similar to those of At-Delta RNAi embryos. (A,C,E,G) At-Notch RNAi embryos. (B,D,F,H) At-Su(H) RNAi embryos. (A,B) Live embryos at late stage 6. At the central area of each germ disc, an invagination such as seen in At-Delta RNAi embryos is formed (brackets). (C,D) Stage 5 germ discs stained for At-Delta transcripts; compare with Fig. 6A,C,E. The evenly spaced pattern of central At-Delta expression was partially disrupted in C, and almost completely in D. Asterisks indicate the position of cumulus. (E-H) Embryos at late stage 6 stained for At-twi (E,F) or At-cad (G,H) transcripts; compare with Fig. 7E-H. The emerging caudal region of each embryo is indicated by brackets. In E, but not in F, At-twi-expressing cells are seen at the peripheral areas. In G and H, only small patches of At-cad expression are visible. ex, extra-embryonic area. Scale bars: 100 µm.