Table 4.
prosomeric diencephalon and EmT GABA/GAD comparisonzebrafish (this study), lamprey (Meléndez-Ferro et al., 2002; Robertson et al., 2007), and lungfish (Trabucchi et al., 2008).
| adult | zebrafish | lamprey | lungfish | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| p1 alar plate | PTd | + | + | + | (dorsal pretectum) | + | + | + | Pr | + | + | + |
| PTv | − | − | − | (pretectal N of oc) | − | + | − | |||||
| p1 basal plate | NMLF | + | + | + | NMLF | + | − | + | NMLF | + | + | + |
| p2 alar plate | Had, Hav | − | − | − | − − − | Ha | − | − | − | |||
| CP | − | − | − | ? * Thalamus | DT (Thd) | − | + | − | ||||
| A, RTN | + | − | + | caudal thalamic group* | + | + | + | ? ? ? | ? | ? | ? | |
| p2 basal plate | IC? | + | + | + | ? | part of DT? | + | + | + | |||
| DP | − | − | − | |||||||||
| p3 alar plate | I, Vm, Vl | + | + | + | (rostral thalamic group 1**) + + + | VT | + | + | + | |||
| p3 basal plate | TPp | + | − | + | − − − | ? ? ? | + | − | + | |||
| TPm | + | − | + | not present | not present | |||||||
| PVO | − | + | − | gap DT/H? | − | + | − | |||||
| preglomerular complex | PGl, PGm, PG | + | − | + | not present | not present | ||||||
| former p4 | EmT (ENv) | − | − | − | − − −** | |||||||
data in lamprey appear not completely anatomically resolved, but figures of Meléndez/Ferro et al., (2002) show distinct GABA-groups in the pretectum, dorsal thalamus and ventral thalamus. The caudal thalamic group of Meléndez-Ferro et al. (2002) could be interpreted as a rostralmost dorsal thalamic group consistent with our findings in this study. GABA-negative and –positive portions have not been clearly separated in lamprey.
the ventral thalamus is named as rostral thalamic nucleus, p3 and p4 are grouped together by Meléndez-Ferro and colleagues (2002).
Robertson and colleagues (2007) found some GABA-labeled cells in the EmT of adult lamprey, Meléndez-Ferro and colleagues (2002) did not find GABA-labeled cells in the EmT of larval lamprey.