Skin patterns of zebrafish.
A, wild type; B, leopard mutant (cx41.8−/−, leot1 allele, null mutant); C, leopard mutant (cx41.8tq270/tq270, leotq270 allele, Cx41.8I203F); D, luchs mutant (cx39.4−/−; knock-out of cx39.4 by TALEN); E, luchs/leopard double homozygous mutant (cx39.4−/−;cx41.8−/−); F, connexin topology sketch highlighting Cx41.8 mutants used in this study. G, summary of the transgenic experiments; H–J, transgenic zebrafish: Tg(mitfa-cx41.8I203F)cx41.8−/− (H), Tg(mitfa-cx41.8M7)cx41.8−/− (I), and Tg(mitfa-cx41.8M7)cx41.8+/+ (J). H′–J′, magnified images of H–J. Scale bar, 5 mm.