Figure 2. Partial overlap in the expression of Soxb1 and Soxb2, and Soxb2 and Soxb3 in feeding polyps.

(A–C) Single-molecule fluorescence in situ hybridization (FISH) with probes against Soxb1 and Soxb2 showing upper-mid (A), lower-mid (B), and lower (C) body column. (D–F) Single-molecule FISH with probes against Soxb2 and Soxb3 showing the head region (D), upper-mid (E), and lower-mid (F) body column. Arrowheads point to double-positive cells. Scale bars = 40 μm.