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The enigmatic Reissner’s fiber and the origin of chordates
Frontiers in Neuroanatomy ( IF 2.9 ) Pub Date : 2021-06-03 , DOI: 10.3389/fnana.2021.703835
Francisco Aboitiz 1, 2 , Juan F Montiel 3
Affiliation  

Reissner’s fiber (RF) is a secreted filament that floats in the neural canal of chordates. Since its discovery in 1860, there has been no agreement on its primary function, and its strong conservation across chordate species has remained a mystery for comparative neuroanatomists. Several findings, including the chemical composition and the phylogenetic history of RF, clinical observations associating RF with the development of the neural canal, and more recent studies in zebrafish development suggesting that RF is needed to develop a straight body axis, may shed light on the functions of this structure in early chordate evolution. In this article, we will briefly review some comparative aspects of RF, its role in the maintenance of the neural canal, and the experiments on zebrafish axial development, all of which point in our view to an important role of this structure in the origin of the chordate phylum.

中文翻译:

神秘的赖斯纳纤维和脊索动物的起源

赖斯纳纤维 (RF) 是一种漂浮在脊索动物神经管中的分泌性细丝。自 1860 年被发现以来,对其主要功能一直没有达成一致意见,对于比较神经解剖学家来说,它在脊索动物物种中的强大保守性仍然是个谜。一些发现,包括 RF 的化学成分和系统发育史、将 RF 与神经管发育相关联的临床观察,以及最近的斑马鱼发育研究表明需要 RF 来形成直的身体轴,可能会阐明这种结构在早期脊索动物进化中的功能。在这篇文章中,我们将简要回顾 RF 的一些比较方面,它在维持神经管中的作用,以及斑马鱼轴向发育的实验,
更新日期:2021-06-03
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