Fig. 5

Fig. 5 Melanophore Aggregation-Dispersion Response to the Change of Background Color. Melanosome aggregation-dispersion in response to a rapid succession of background color change was measured. The upper panels show the responses of melanophores in the trunk of wild-type (WT) fish, and the lower panels show that of mutant fish (obe^tc271d). The left panels depict the usual state (black background), the middle panels depict melanophores after being sustained for 3 min in a white (light) background, and the right panels depict melanophores after 3 min in a black (dark) background. The wild-type melanophores responded normally to the change of background color (n = 6), whereas mutant fish (jag^b230 and obe^tc271d) melanophores strongly responded to the change of background color from black to white but did not respond to the change from white to black (n = 9 for all).