Regeneration of melanophores after skin grafting in tadpoles. (A) A piece of GFP-labelled skin was grafted to the lateral region of the middle trunk of a non-GFP tadpole host, which was then amputated 3 days after. (B) A 7 day tail regenerate from a skin grafted tadpole, white arrowheads indicate the amputation level. (C) Detection of GFP in a melanophore in the regenerate. 4 views are shown: top left transmitted light; top right GFP fluorescence; bottom left DAPI fluorescence (DNA); bottom right transmitted light and fluorescence. Scale bars: 500 μm in A, B, 10 μm in C.