Nervous system development in the fairy shrimp Branchinella sp. (Crustacea: Branchiopoda: Anostraca): Insights into the development and evolution of the branchiopod brain and its sensory organs

Nervous system development in the fairy shrimp Branchinella sp. (Crustacea: Branchiopoda: Anostraca): Insights into the development and evolution of the branchiopod brain and its sensory organs
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神仙虾 Branchinella sp(甲壳纲:Branchiopoda:Anostraca)的神经系统发育:深入了解鳃足类大脑及其感觉器官的发育和进化

DOI:
10.1002/jmor.20585
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发表时间:
2016
影响因子:
1.5
通讯作者:
Richter
Richter
中科院分区:
医学4区
文献类型:
--
作者:
Richter

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采用免疫组织化学标记技术,结合共聚焦激光扫描显微镜和三维重建技术,研究了淡水池塘的临时居民branchinellasp。(甲壳纲:支足纲:Anostraca)首次提供了Anostraca神经系统发育的详细资料。原始大脑感觉器官,如鹦鹉眼和额丝器官,早在孵化期L0就出现了。在下颌后区,两个末梢先锋神经元由后向前生长,连接下颌神经粒。第一个出现的原脑神经块不是中枢复合体的一部分,而是代表正中神经块,从L0+开始发育。在L3期,复眼发育的第一个证据是可见的。随后是视觉神经粒和中枢复合体的神经粒在原大脑的形成。从下脑叶开始,突出的神经元束延伸到外侧前脑的两侧,在中央体后面形成一个交叉。在肩后区,末梢先锋神经元与下颌神经细胞束束化后,周围神经系统、相交神经和连接神经沿前后梯度发育。胸椎节段的周围神经系统由两侧的两个纵向神经突束组成,这些神经突束连接节间神经,与腹侧神经系统一起形成一个正交网络。在这里,我们讨论,除其他事项外,第四个nauplus眼神经的证据和讨论在branchinellasp中发现的突出的神经元束。,并提供论据来支持我们的观点,即甲壳类动物的额丝(器官)和爪龙的主天线是同源的。中国生物医学工程学报,2016,37(2):444 - 444。©2016 Wiley期刊公司
Using immunohistochemical labeling against acetylated a‐tubulin and serotonin in combination with confocal laser scanning microscopy and 3D‐reconstruction, we investigated the temporary freshwater pond inhabitantBranchinellasp. (Crustacea: Branchiopoda: Anostraca) for the first time to provide detailed data on the development of the anostracan nervous system. Protocerebral sense organs such as the nauplius eye and frontal filament organs are present as early as the hatching stage L0. In the postnaupliar region, two terminal pioneer neurons grow from posterior to anterior to connect the mandibular neuromeres. The first protocerebral neuropil to emerge is not part of the central complex but represents the median neuropil, and begins to develop from L0+ onwards. In stage L3, the first evidence of developing compound eyes is visible. This is followed by the formation of the visual neuropils and the neuropils of the central complex in the protocerebrum. From the deutocerebral lobes, the projecting neuron tract proceeds to both sides of the lateral protocerebrum, forming a chiasma just behind the central body. In the postnaupliar region, the peripheral nervous system, commissures and connectives develop along an anterior–posterior gradient after the fasciculation of the terminal pioneer neurons with the mandibular neuromere. The peripheral nervous system in the thoracic segments consists of two longitudinal neurite bundles on each side which connect the intersegmental nerves, together with the ventral nervous system forming an orthogon‐like network. Here, we discuss, among other things, the evidence of a fourth nauplius eye nerve and decussating projecting neuron tract found inBranchinellasp., and provide arguments to support our view that the crustacean frontal filament (organ) and onychophoran primary antenna are homologous. J. Morphol. 277:1423–1446, 2016. © 2016 Wiley Periodicals, Inc.
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D. Nässel;R. Elofsson;R. Odselius
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羟色胺的免疫反应性中间神经元在雷神的大脑中:对神秘的甲壳类分类单元的系统发育亲和力的新见解。
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