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Fig. 4. Pigment patterns at early metamorphosis and after late
metamorphosis. (A) Wild-type D. rerio with initially
dispersed metamorphic melanophores as well as nascent stripes bounding the
primary interstripe (arrow). (B) Wild-type D. albolineatus has
dispersed melanophores, which are largely absent from a corresponding
interstripe region (arrow). (C,D) kit mutants of both
species lack melanophores at early metamorphosis. (E) Wild-type D.
rerio with a juvenile pigment pattern of two primary stripes bounding the
primary interstripe and a third stripe developing further ventrally.
(F) Wild-type D. albolineatus with melanophores relatively
uniformly dispersed except for the interstripe region. Melanophores adjacent
to the interstripe tend to be larger and darker. White bar indicates darkness
owing to internal structures (aorta, vertebrae, etc.) rather than
melanophores. (G) kit mutant D. rerio develop
residual LM melanophores in stripes (large arrowheads) dorsal and ventral to
the interstripe. (H) kit mutant D. albolineatus
develop residual LM melanophores primarily in a stripe dorsal to the
interstripe (large arrowheads), although a few melanophores are also found
ventral to the interstripe (small arrowheads). Ages, A and C, 31 dpf; B and D,
28 dpf; E and G, 53 dpf; F and H, 60 dpf. Scale bars: in A, 500 µm for A-D;
in E, 500 µm for E,G; in F, 500 µm for F,H.
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