Fig. 5. FBF-1, FBF-2, and FOG-1 observed in germ line but not in VPCs. (A) Schematic of wild-type vulval induction. The AC signals to underlying VPCs to adopt vulval fates during late L2/early L3. (B-G) Late L2s. MH27 (green) outlines VPCs. Arrowheads indicate VPCs, Insets show positive germ-line staining, and dashed lines outline the germ line. Genotypes are indicated in micrographs. MH27 recognizes cell adherens junctions (1) and outlines the VPCs (2). (B) FBF-1 is readily detectable in germ cells but not in VPCs. (C) FBF-2 is detectable in germ cells but not in VPCs. (D) FOG-1 is faint, but detectable, in germ cells but not in VPCs. (E) FBF-1 is detectable in germ cells of
fog-1 mutants but not in VPCs. (F) FBF-2 is detectable in germ cells of
fog-1 mutants but not in VPCs. (G) FOG-1 is detectable in germ cells of
fbf-1 fbf-2 double mutants but not in VPCs.