Insm1a regulates the expression of chemokine signaling components. WISH was used to detect the expression of cxcl12a (A,B), cxcr4b (C,D), and cxcr7b (F,G) in control and insm1a morphants at 30–32 hpf. (E,H) The ratio of cxcr4b-positive cells (E) or cxcr7b-positive cells (H) to total cells in the primordia of controls (black bars) and insm1a morphants (gray bars). Data are expressed as mean ± s.e.m. *p < 0.05; ***p < 0.001. The cxcl12a expression is reduced in insm1a morphants, while cxcr4b expression is up-regulated and cxcr7b expression is down-regulated in insm1a morphants compared to controls. The primordium is outlined with a dotted line, and the anterior is to the left. Scale bar: 50 μm (A,B) and 10 μm (C–F).
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