A double-label study of efferent projections from the Edinger-Westphal nucleus in goldfish and kelp bass

Wathey, John C. and Wullimann, Mario F. (1988): A double-label study of efferent projections from the Edinger-Westphal nucleus in goldfish and kelp bass. In: Neuroscience Letters, Vol. 93, No. 2-3: pp. 121-126

Abstract

The Edinger-Westphal nucleus in goldfish was identified by retrograde labeling from the ciliary ganglion. In the same animals a few neurons near this nucleus (perinuclear Edinger-Westphal neurons) were labeled by a different retrograde tracer injected into the cerebellum. No double-labeled cells were found. Similar results were obtained in kelp bass, except that in this species no cerebellar-projecting perinuclear neurons were observed. Cerebellar-projecting Edinger-Westphal neurons have previously been described in some mammals, but not in other vertebrates. Therefore the homology of cerebellar-projecting cells of the Edinger-Westphal region in mammals and teleost fishes is doubtful.

• Item Type: Article
• Keywords: Cerebellum; Ciliary ganglion; Edinger-Westphal nucleus; Fluoro-Gold; Goldfish; Horseradish peroxidase; Kelp bass; Teleost
• Collections: Biology
• Subjects: 500 Science > 570 Life sciences; biology