The reniform body: An integrative lateral protocerebralneuropil complex of Eumalacostraca identified in Stomatopodaand Brachyura
The reniform body: An integrative lateral protocerebralneuropil complex of Eumalacostraca identified in Stomatopodaand Brachyura
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肾状体：在口足纲和短尾纲中鉴定出真鳃纲的整合性外侧原脑神经纤维复合体
DOI：
10.1002/cne.24788
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Strausfeld, Nicholas J
中科院分区：
文献类型：
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作者：
Thoen, Hanne H;Wolff, Gabriella H;Marshall, J;Sayre, Marcel E;Strausfeld, Nicholas J
螳螂虾（口足目）与其他甲壳类动物和六足目动物一样，具有特定的前脑神经解剖学属性，前脑是节肢动物大脑的最前部。这些属性包括相互连接的中心的集合，称为中心体复合体，以及位于眼柄的外侧前脑中的成对蘑菇体。泛节肢动物的这些中心的表型同源物支持这样的观点，即对行动选择和记忆至关重要的祖先整合电路自寒武纪早期或埃迪卡拉纪晚期以来一直存在。然而，在口足类动物外侧前脑中发现的另一个突出的整合性神经元引起了一个问题，即它是否是口足类动物所特有的，或者至少是这个谱系中最发达的，它可能起源于上奥陶纪或泥盆纪早期。在这里，我们描述了这个中心的神经解剖结构，称为肾状体。使用共聚焦显微镜和经典的银染色，我们证明肾状体接收来自多个来源的输入，包括视叶的小叶。虽然蘑菇体也接受来自小叶的突起，但它与肾状体完全不同，尽管通过离散的纤维束与肾状体相连。我们讨论了它们共存于口足类的影响，肾形体的发生在另一个eumalacostracan血统，这可能意味着我们的理解，在Pancrustacea的大脑功能。
Mantis shrimps (Stomatopoda) possess in common with other crustaceans, and with Hexapoda, specific neuroanatomical attributes of the protocerebrum, the most anterior part of the arthropod brain. These attributes include assemblages of interconnected centers called the central body complex and in the lateral protocerebra, situated in the eyestalks, paired mushroom bodies. The phenotypic homologues of these centers across Panarthropoda support the view that ancestral integrative circuits crucial to action selection and memory have persisted since the early Cambrian or late Ediacaran. However, the discovery of another prominent integrative neuropil in the stomatopod lateral protocerebrum raises the question whether it is unique to Stomatopoda or at least most developed in this lineage, which may have originated in the upper Ordovician or early Devonian. Here, we describe the neuroanatomical structure of this center, called the reniform body. Using confocal microscopy and classical silver staining, we demonstrate that the reniform body receives inputs from multiple sources, including the optic lobe's lobula. Although the mushroom body also receives projections from the lobula, it is entirely distinct from the reniform body, albeit connected to it by discrete tracts. We discuss the implications of their coexistence in Stomatopoda, the occurrence of the reniform body in another eumalacostracan lineage and what this may mean for our understanding of brain functionality in Pancrustacea.