Dopaminergic Neurons in the Zebrafish Subpallium Belong to the Extended Medial Amygdala.

ABSTRACT: The amygdala is a heterogeneous, multinuclear telencephalic structure critical for motivated and emotion-related behaviors in vertebrates. In ray-finned fish (Actinopterygii) like the teleost zebrafish, a telencephalic outward-growing process called eversion makes defining amygdaloid territories particularly challenging. Teleosts are also peculiar in that they develop numerous dopaminergic (DA) neurons in the subpallium, while in tetrapods, such populations are less prominent or appear only transiently. To shed light on the organization of the amygdala in teleosts, we pursued an evolutionary developmental approach focusing on the topological origin of subpallial DA neurons. Specifically, we analyzed the distribution of tyrosine hydroxylase (Th) in conjunction with expression patterns of pa

SUBMITTER: Armbruster D 

PROVIDER: S-EPMC12324066 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature