University of Greifswald, Zoological Institute and Museum, Department of Cytology and Evolutionary Biology, Soldmannstrasse 23, D-17498 Greifswald, Germany.
University of Greifswald, Zoological Institute and Museum, Department of Cytology and Evolutionary Biology, Soldmannstrasse 23, D-17498 Greifswald, Germany.
Arthropod Struct Dev. 2021 Nov;65:101100. doi: 10.1016/j.asd.2021.101100. Epub 2021 Sep 3.
According to all latest phylogenetic analyses, the taxon Pancrustacea embraces the crustaceans in the traditional sense and the hexapods. Members of the Pancrustacea for a long time have been known to display distinct similarities in the architecture of their brains. Here, we review recent progress and open questions concerning structural and functional communalities of selected higher integrative neuropils in the lateral protocerebrum of pancrustaceans, the mushroom bodies and hemiellipsoid bodies. We also discuss the projection neuron pathway which provides a distinct input channel to both mushroom and hemiellipsoid bodies from the primary chemosensory centers in the deutocerebrum. Neuronal characters are mapped on a current pancrustacean phylogeny in order to extract those characters that are part of the pancrustacean ground pattern. Furthermore, we summarize recent insights into the evolutionary transformation of mushroom body morphology across the Pancrustacea.
根据所有最新的系统发育分析，节肢动物门这个分类单元包含了传统意义上的甲壳动物和六足动物。长期以来，节肢动物门的成员在其大脑结构上表现出明显的相似性。在这里，我们回顾了最近在甲壳动物侧前脑的蘑菇体和半脑球体等选择的高级整合神经叶的结构和功能共性方面的进展和悬而未决的问题。我们还讨论了从后脑的主要化学感觉中心向蘑菇体和半脑球体提供明显输入通道的投射神经元通路。为了提取出属于节肢动物基本模式的特征，我们将神经元特征映射到当前的节肢动物系统发育上。此外，我们总结了最近对甲壳动物门中蘑菇体形态进化转变的认识。
