Emergence of axonal tracts in the developing brain of the turbot (Psetta maxima)

Brain, Behavior and Evolution
M J DoldánE De Miguel

Abstract

In this study we have investigated the pattern of morphogenesis and axogenesis in the turbot brain during embryonic and early larval stages with immunohistochemistry using an antibody against acetylated tubulin. The first immunoreactive elements were detected at 74 h post-fertilization in fibers running in the medial and lateral longitudinal fascicles. Newly positive axonal bundles are progressively added during development forming rostrocaudally directed tracts. The tract of the postoptic commissure appears at 86 h post-fertilization located rostrally to the medial longitudinal fascicle. Together, the medial longitudinal fascicle and the tract of the postoptic commissure constitute a major longitudinal axonal pathway, which is extended rostrally in embryos of 98 h post-fertilization by the supraoptic tract. In the forebrain, two vertical tracts, the tract of the posterior commissure (appearing around 98 h post-fertilization) and the tract of the anterior commissure (detected at 110 h post-fertilization) project descending axons to the pre-existing axonal longitudinal pathway. These early tracts are connected by four associated commissures (ventral tegmental, postoptic, posterior and anterior commissure). Some groups of labeled...Continue Reading

Citations

Sep 26, 2002·Journal of Chemical Neuroanatomy·B PregoE de Miguel Villegas
Jul 12, 2007·Journal of Anatomy·Mansoor AhsanFrank R Schubert
Jul 30, 2014·Frontiers in Human Neuroscience·Rodrigo SuárezLinda J Richards
Jul 23, 2004·The Journal of Comparative Neurology·Yuji IshikawaHironobu Ito
Nov 26, 2008·The Journal of Comparative Neurology·Antón Barreiro-IglesiasMaría Celina Rodicio
May 24, 2011·Journal of Anatomy·Michelle Ware, Frank R Schubert
Jun 17, 2018·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·Juan C Solís-SHebert L Hernández-Montiel
Aug 1, 2015·Developmental Dynamics : an Official Publication of the American Association of Anatomists·Michelle WareFrank R Schubert
Dec 26, 2007·Brain Research Bulletin·Antón Barreiro-IglesiasMaría Celina Rodicio

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