Figure 3.
HVC expression patterns of select Group B and C genes. A-C: Shown are views of whole parasagittal brain sections of adult males at the level of major song nuclei, processed for in situ hybridization to illustrate general expression patterns (left panels), as well as detailed views of HVC at 20 dph (middle panels) and in adults (right panels). The solid box in A shows the location of the magnified images of HVC in the middle and right panels; dotted boxes show the locations of several panels in Fig. 4. Arrowheads indicate the approximate boundaries of HVC; scale bars: 5 mm for left panels and 500 μm for middle and right panels.