Fig. 4
Chromogenic and fluorescence in situ hybridization for tyrosine kinase receptors trka, trkb, and trkc on cryostat and paraffin sections of adult zebrafish kidney. (a) Chromogenic and (b) fluorescence in situ hybridization of trkA-mRNA in adult zebrafish kidney; it is expressed in proximal tubules (PT). (c) Chromogenic and (d) fluorescence in situ hybridization of trKB-mRNA and cell nuclei marked with DAPI staining in adult zebrafish kidney; trkb is expressed in hematopoietic cells (Hc). (e) Chromogenic and (f) fluorescence in situ hybridization of trkC-mRNA; it is expressed in hematopoietic cells, and proximal and distal tubules (respectively, Hc, PT, and DT). Scale bars: 100 ?m (a?f).