Fig. 1. str-3 repression upon crude pheromone exposure is imposed from egg to the L1 stage.

(A) Experimental diagram of str-3 repression by crude pheromone exposure at each developmental stage. (B) Fluorescence images of GFP in the ASI neurons of str-3p::gfp transgenic animals taken at the adult stage in the absence or presence of crude pheromone. (C) Relative percentage of str-3p::gfp expression in the ASI neurons of animals at each developmental stage after exposure to crude pheromone during the indicated stages of development. (D–E) Relative percentage of str-3p::gfp expression in the ASI neurons of young adult animals that were exposed to crude pheromone during the indicated stages of development. (C–E) Black vertical bars indicate time of observation. n ≥ 30 for each. The scale bar represents 10 μm.