However, no thalamic projections to the zebrafish dorsal pallium, which. We appreciate as much detail as possible and references as appropriate. In zebrafish larva, a coarse spatial frequency organization was. Fiber connections of central nucleus of semicircular torus in cyprinids article in the journal of comparative neurology 49. Zebrafish international resource center zirc china zebrafish resource center czrc european zebrafish resource center ezrc. This study describes the cytoarchitecture of the torus longitudinalis tl in adult zebrafish by using light and electron microscopy, as well as its main connections as revealed by dii tract tracing. Neuronal activity was recorded from different optical planes containing the octaval nuclei on in the hindbrain, which is the first known relay for auditory information in teleost fish. The toms of nonelectroreceptive fishes generally contains only a few cell layers. Fiber connections of central nucleus of semicircular torus.
The following account outlines the major cns divisions in the zebrafish and the. Medulla oblongata optic tectum torus semicircularis trigeminal root. Fiber connections of the torus longitudinal is in a teleost. The torus semicircularis is located dorsal to the lateral tegmentum where it extends into the medial tectal ventricle and receives ascending sensory octavolateralis input. Multitissue structure that is a paired longitudinal eminence of granular cells that develops from the alar plate and is attached to the tegmentum in the medial tectal ventricle. Octavolateral projections to the torus semicircularis of. The torus longitudinalis only occurs in ray finned fishes. The torus semicircularis is a region of the vertebrate midbrain that contributes to auditory perception, studied most often in fish and amphibians. Other zebrafish strains used in the study include ek, a com.
Pdf central neuroanatomy of electrosensory systems in fish. Human orthologs of this gene implicated in several diseases, including aromatase excess syndrome. The torus semicircularis is located dorsal to the lateral tegmentum where it extends into the medial tectal ventricle and. This region is divided into subnuclei that each receive lemniscal projections. Fiber connections of the torus longitudinalis in a teleost.
Multitissue structure that is part of the midbrain and develops from the alar plate. Secondorder projection from the posterior lateral line in the early zebrafish brain. Caudal region of the midbrain roof corresponding to the mammalian inferior colliculus. Zebrafish reveals different and conserved features of vertebrate. Tsvl, ventrolateral nucleus of torus semicircularis. Pdf secondorder projection from the posterior lateral. The torus semicircularis is a laminated structure in the mesencephalon of fishes, which can be considered as an auditory and lateral line center 17.
In this paper we examine the secondorder projection from the posterior lateral. This projection is well developed in zebrafish at four days after fertilization. In addition, by using high resolution confocal imaging followed by digital tracing, we describe the morphology of tectal pyramidal cells type i cells that are gfp positive in the transgenic line. Cyprinus carpio reexamined article in the journal of comparative neurology 4572. Zfin expression search results zebrafish information network. In zebrafish larvae, audition of frequencies above 100 hz is. Neurons from the medulla project to the nucleus centralis and the nucleus ventrolateralis in the torus semicircularis, providing afferent auditory and hydrodynamic information. Please use this form to recommend updates to the information in zfin. A novel finding of the present study is the observation of. A tool for visualizing 3d expression within the brain of zebrafish transgenic lines. Secondorder projection from the posterior lateral line in the early. Sensorimotor transformations in the zebrafish auditory system.
896 350 111 288 383 1420 1048 854 712 1514 1047 262 1463 1165 759 221 547 736 687 154 923 1380 1041 992 1286 416 122 89 254 1426 251 408 791 18 1286 786 258 237 108 516 535 1126 1298 211 843