Movie 4 (related to fig. 2G-H').

Dynamics of primitive microglia in the retina of a Slc7a7-deficient zebrafish larva from 2.5 dpf. Time-lapse confocal imaging starting by 54 hpf of a Tg(mpeg1:gal4; uas:Nfsb-mCherry) larva injected with the slc7a7-sp22 morpholino at the 1-2 cell stage, and imaged in parallel with the control Mo-injected larva shown in Movie 3, in the same glassbottomed dish. Lateral view (maximum projection from a z-stack); time step = 3 min.