...Christoph Gebhardt; Martin Bastmeyer; Franco Weth The retinotectal projection, which topographically maps retinal axons onto the tectum of the midbrain, is an ideal model system with which to investigate the molecular genetics of embryonic brain wiring. Corroborating Sperry's seminal hypothesis...

... determinants Nok and Has/aPKC in their cell bodies. ako is required cell-autonomously for the maintenance of the apical process but not for cell body positioning in Müller glia. At later stages, the retinotectal projection also degenerates in ako mutants. These results indicate that the p50 component...

... 10 1994 © 1995 by Company of Biologists 1995 axon guidance retinotectal synaptogenesis chick A prominent feature of neural organization in many parts of the vertebrate central nervous system (CNS) is the arrangement of cells into discrete laminae, parallel to the pial...

...N. Degen; K. Brändle; L. Peter ABSTRACT In Xenopus larvae, the size and location of the retinotectal projection of nasoventral quarter-eyes was analyzed in early stages (43–47), midlarval stages (50 and 53) and metamorphic stages (56 and 60), by labelling the optic nerve with the cobalt-lysine...

...: Physiology Department, University of Edinburgh, Medical School, Teviot Place, Edinburgh † Author for correspondence © 1991 by Company of Biologists 1991 retinotectal glial cells growth cone collapse in vitro Xenopus laevis During the development of the visual system...

... 1991 by Company of Biologists 1991 axon guidance retinotectal Xenopus selective fasciculation These studies concern the development of axon tracts in the central nervous system. We have concentrated upon the earliest stages of development of the retinofugal projection in the frog...

... of a series of investigations into the initial development of the Xenopus retinotectal projection, I have performed embryonic tectal rotation and translocation operations in which the target has been displaced to a novel site. At later stages of development horseradish peroxidase (HRP) or the carbocyanine...

... exist which must be rather similar in nature and overall distribution in both species. Experiments in the regenerating retinotectal projection in adult goldfish ( Vielmetter & Stuermer, 1988 , 1989 ) suggest that, in this system also, temporal but not nasal fibers grow preferentially on anterior...

... for correspondence: Miami Project to Cure Paralysis, 1600 N.W. 10th Avenue, R-48, Miami, Florida 33136, USA 17 11 1987 © 1988 by Company of Biologists 1988 retinotectal topographic projections positional information axonal regeneration The pathways laid down by axons in locating...

... the period of development of the retinotectal projection and are independent of tectai innervation by retinal axons. These anterior-posterior differences disappear by embryonic day 14. 24 08 1987 © 1987 by Company of Biologists 1987 retinotectal chick in vitro cell membrane path...

... axons can only be studied during growth, these treatments are less suitable to investigate whether this selectivity is based on specific attractivity of anterior, or specific repulsion of posterior, cell membranes. 24 08 1987 © 1987 by Company of Biologists 1987 retinotectal...