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Fig. 5. tarde demais (tard) and late bloomer
(late) mutants show mildly delayed innervation of the tectum. (A-F)
Confocal images of Brn3c:mGFP labeled retinotectal projections of 80
hpf tecta in live larvae (A-C). The wild-type tectum (A) is filled with
retinal axons. The optic tract has branched into stereotyped fascicles,
labeled with numbers. The tard tectum (B) and the late
tectum (C) are less than halfway innervated. (D-F) Lateral views of 6 dpf
tecta. The tard tectum and the late tectum are now covered
with axons. However, the tard tectum is small and its boundary
remains abnormal (E), compared with wild type (D) and in contrast to
late (F). Asterisks indicate melanophores on the skin. Broken lines
outline the tectal neuropil. Scale bars: 20 µm.
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