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Figure 4


Fig. 4. Loss of Nvit cad causes a `head only' phenotype. (A) The wild-type Nvit cuticle consists of three thoracic denticle belts and 10 abdominal denticle belts. (B) Thoracic segment 2, as well as A1-A3 abdominal denticle belts, show spiracles. Nvit cad RNAi results in loss of most abdominal denticle belts. (C) ho also shows loss of abdominal segments. (D) The Dm wild-type cuticle consists of eight abdominal denticle belts. (E) Dm cadmat mutants show loss of A4 and A8. (F) Dm cadmat+zyg show loss of many abdominal segments. (G-I) engrailed expression in Nvit wild-type (G), Nvit cad RNAi (H) and ho (I) embryos.