Red cone photoreceptor cell arrangement

Red cone photoreceptor cell arrangement: (Left) In wild-type retinas, red cones extend multiple filopodia toward neighboring cells, but these filopodia stop growing when they encounter other red cones (white arrows). (Middle) In Dscamb mutants, red cone filopodia continue growing even after making contact with neighboring red cones (white arrowheads). (Right) Time series dynamics of filopodial extension/retraction of wild-type and Dscamb mutant red cones, which are indicated by yellow rectangles in left and middle panels.