Figure 4—figure supplement 1.

Figure 4—figure supplement 1. Ectopic Sema7A^sec diffusive cues induce aberrant sensory neurite extension.

(A-A") In a micrograph of an ectopically expressing Sema7A^sec (orange) larva, the sensory arbors (magenta) extend multiple axonal projections (arrowheads) that reenter the lateral-line nerve while following an ectopic Sema7A source. Maximal-intensity projections of the sensory arbors and the ectopically expressing Sema7A cells (white dashed line) are shown in A' and A", respectively. (B-B") Micrographs depict three individual incidents of ectopic sema7a^sec (orange) integrations that occurred distant from neuromasts. In each case, a set of myofibers expresses the ectopic Sema7A^sec protein that induces neurite extensions (arrowheads) from the lateral-line nerve (magenta) toward itself. Scale bars, 20 µm.