... by transplanting rhodamine-dextran labeled wild-type cells into cls – hosts show ectopic iridophores (A), melanophores (C) and xanthophores (E). These chromatophores are entirely derived from the labeled donor (red; B,D,F). A and C are views with Nomarski optics, B and D are superimposed Nomarski...

..., Massachusetts 02138, USA 26 01 1996 © 1996 by Company of Biologists 1996 melanophore xanthophore iridophore specification proliferation survival differentiation The questions of how cells become specified and patterned within the embryo are fundamental to developmental...

... xanthophores in axanthic skin. Iridophores apparently failed to differentiate in axanthic axolotls (a pattern similar to that observed in melanoid axolotls). Chromatographic analyses of skin extracts confirmed that there are no pteridines (xanthophore pigments) in axanthic skin, suggesting that the axanthic...

... the morphology of these cells is shown to be very similar to xanthophore morphology. In older albino animals xanthophores are easily distinguished from unpigmented melanophores. Iridophores seem to appear in albino skin at an earlier stage than they have been observed in wild-type skin. Morphologically, wild...