Distribution of <i>cyp19a1b</i> mRNA and aromatase protein in the brain of the Japanese eel.

<p>A, D, G: <i>Cyp19a1b</i> mRNA in the brain of the Japanese eel as revealed by <i>in situ</i> hybridization in the supracommissural nucleus of the subpallium (Vs), the parvocellular preoptic nucleus (PP) and the magnocellular preoptic nucleus (PM). Note that the signal is consistently restricted to the regions adjacent to the ventricles. B, E, H: Aromatase protein in the brain of the Japanese eel as revealed by immunohistochemistry on the same sections than in A, D and G. One can see that immunoreactive cells have their nuclei along the ventricles and long lateral processes C, F, I: Merges showing overlapping (yellow color) of <i>cyp19a1b</i> mRNA and aromatase protein in the brain of the Japanese eel as revealed by immunohistochemistry on the same sections than in A, D and G. Only the radial processes do not show co-expression. All bars = 20 μm.