Fig. 2. fet is required in ventral follicle cells for normal DV pattern of the embryo. (A-C) Embryos produced by fet germline clones (GLC). The expression of Twist (A) and zen RNA (B) appear normal in fetE11 GLC embryos (lateral view, dorsal side upwards). The differentiated cuticle has normal DV polarity but shows a torso gain-of-function phenotype (C). (D) Embryo produced by unmarked fetU6 follicle cell clones (FCC). This cuticle of a FCC embryo is strongly dorsalized. (E,F) Embryos produced by dec-marked fetU6 FCC. (E) Two views of a single egg with a large dorsal clone. The dorsal follicle cells were mutant for fet, whereas the ventral follicle cells were wild type. The embryo within has a normal DV pattern. (F) A ventral posterior clone causes localized dorsalization, as evident by the loss of ventral denticle bands. The clone borders have been highlighted using Adobe Photoshop.
