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Fig. 7 Pigment cells and ears in mutants and wild types. (A-D) Trunk melanocytes, lateral view at 4 dpf, showing large melanocytes in sox9bb971 and double mutant. (E-H) dct expression at 26 hpf, showing little difference among genotypes; (I-L) iridophores at 4 dpf, showing fewer iridophores in sox9bb971 and double mutant. (M-P) ear at 4 dpf, showing small ear in sox9bb971 and no ear in double mutant. (A,E,I,M) Wild type; (B,F,J,N) sox9a- mutant; (C,G,K,O) sox9bb971; (D,H,L,P) double mutant. Abbreviations: i, iridophore; me, melanocyte; ot, otolith; ov, otic vesicle. Scale bars: in D 100 µm for A-D; in H, 100 µm for E-H; in L, 100 µm for I-L; in P, 100 µm for M-P.