Fig. 8
Fig. 8
Spinal cord expression of zebrafish pkd genes. Lateral views showing expression of pkd genes at 1–5 dpf. Rostral left, dorsal up. (A–F) pkd1b is expressed broadly in the spinal cord. pkd1l2a (G–L) and pkd2l1 (M–R) are both expressed in two rows of cells in the ventral spinal cord and occasionally weakly in more dorsal cells (asterisk). (S–U) pkd1, (V–X) pkd1l1, (Y–A') pkd1l2b, and (B'–D') pkd2 are not expressed in spinal cord. Some of these embryos have background expression as we stained them for long periods of time to try and detect any weak, but specific, expression. Expression of pkd2 is visible in the rostral ventral somites (D'). Scale bar (A) = 50 μm.