(A–R) All RGC (CTb-594, magenta) and slow-DSGC (Hoxd10-GFP, cyan) axons in wildtype (WT; top panels) and cKO (bottom panels) mice. Scale bars, 100μm (A–F); 200μm (G–R). mdPPN, medial division of the posterior pretectal nucleus; MTN, medial terminal nucleus; NOT, nucleus of the optic tract; OPN, olivary pretectal nucleus. (S) Quantification of % of target innervated by Hoxd10-GFP axons in WT (dark gray) and cKO (light gray) mice. Data are represented as mean ± SEM (n = 3 mice per group); Student’s t-test. (T) Summary schematic. See also Figures S4 and S5.