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Figure 4


Fig. 4. ErbB gene expression in metamorphosing larvae. (A,B) erbb3 loci were expressed in glia (~18 dpf). Arrows, glial cells surrounding midbody lateral line. (A) erbb3b. (B) erbb3a. (C) RT-PCR revealed metamorphic melanophore expression of erbb3b and erbb2, but not erbb3a or egfr. All four ErbB genes were expressed in adult fin. mel, melanophore; dct, dopachrome tautomerase (encoding a melanin synthesis enzyme expressed by melanophores and their precursors). dct is more strongly expressed in melanoblasts (present in fin) compared with melanophores (mel). Scale bar: in A, 0.5 mm for A,B.