PMID: 9193729Jun 1, 1997Paper

Development of the retinotectal system in the pigeon: a cytoarchitectonic and tracing study with cholera toxin

Anatomy and Embryology
Martina Manns, O Güntürkün

Abstract

The optic tectum of the pigeon (Columba livia) is marked by morphological dorso-ventral and left-right differences. Both features seem to be related to functional specializations, but the responsible developmental mechanisms are unclear. Since the visual system becomes functional only after hatching, the developmental processes might be extended into the post-hatching period. The development of the asymmetries in the tectofugal system, however, depends on an asymmetric light stimulation acting already before hatching. As a first attempt to resolve this discrepancy, we examined the ontogeny of the retinotectal system by labeling the developing retinal projection with cholera toxin subunit B, in conjunction with an analysis of the cytoarchitectonic differentiation of the optic tectum. The data demonstrate that the first fibers to penetrate all retinoreceptive tectal layers could be observed from embryonic day 15 onwards, indicating that visual information could in principle be already processed before hatching. The afferent projection already exhibited the adult lamination pattern directly at the beginning of the invasion of the tectal layers; a surprising finding, since at that time the lamination pattern of the tectal layers di...Continue Reading

Citations

Jan 21, 2009·Experimental Brain Research·Martina Manns, Onur Güntürkün
Oct 12, 2012·Brain Structure & Function·Felix StröckensOnur Güntürkün
Dec 4, 2003·Brain Research. Developmental Brain Research·Nurhan ConSuleyman Kaplan
Feb 22, 2000·Behavioural Brain Research·L J Rogers, C Deng
Nov 5, 2015·The European Journal of Neuroscience·Felix Ströckens, Onur Güntürkün
Oct 24, 2007·Brain Research Reviews·Arthur Giraldi-GuimarãesRosalia Mendez-Otero
Apr 20, 2006·Behavioural Processes·Jens-Uwe F BuschmannOnur Güntürkün
Nov 3, 2005·The European Journal of Neuroscience·Martina MannsAndrea Blöchl
May 10, 2020·The European Journal of Neuroscience·Sara LetznerOnur Güntürkün
Apr 13, 2000·Brain Research. Brain Research Reviews·J Mey, S Thanos

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