Single-cell clone analysis of H-neurons. All 6 possible neuron trajectories (L-LAB, L-RAB, L-LRAB, R-LAB, R-RAB, and R-LRAB; see text for details) are schematized and their occurrence in ASYM j , k and SYM l , m flies indicated as n numbers. Single neurons are labelled with the 72A10-Gal4 driver through the MCFO method (magenta) while the whole H-neuron circuit is labelled with the 72A10-lexA driver (yellow), allowing to determine whether an ASYM or SYM fly is observed. Insets at the bottom show higher magnification of AB region with representative single neuron types (magenta) and the whole H-neuron circuit (yellow). Dotted line represents the brain midline. Scale bars, 30 m.
