Skip to main content
Fig. 3 | Zoological Letters

Fig. 3

From: Comparative analysis of Hmx expression and the distribution of neuronal somata in the trigeminal ganglion in lamprey and shark: insights into the homology of the trigeminal nerve branches and the evolutionary origin of the vertebrate jaw

Fig. 3

Distribution of the rV2/3A neuronal somata in the gV2/3 in the lamprey. a, b Confocal microscopy of a labeled prolarva at st. 30 (a) and its schematic illustration (b). Rhodamine-conjugated dextran is injected into the upper lip (ulp). As a result, some neuronal somata in the gV2/3 are retrogradely labeled. Some muscle fibers (mf) are unexpectedly labeled as well. c, d Reconstructed 3D image viewed from caudal (c) and left sides of the specimen (d). Note that labeled somata are distributed predominantly in the lateral and ventrocaudal parts of the gV2/3. e, f Whole-mount in situ hybridization of HmxB in a transverse section at the level of the gV2/3 at st. 28 (e) and the magnified gV2/3 region (f). Scale bars: 50 µm for (e)

Back to article page