Mushroom bodies in crustaceans: Insect‐like organization in the caridid shrimp Lebbeus groenlandicus

Mushroom bodies in crustaceans: Insect‐like organization in the caridid shrimp Lebbeus groenlandicus
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甲壳类动物中的蘑菇体:虾Lebbeus groenlandicus中的昆虫状组织

DOI:
10.1002/cne.24678
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发表时间:
2019
影响因子:
2.5
通讯作者:
N. Strausfeld
N. Strausfeld
中科院分区:
医学3区
文献类型:
--
作者:
M. E. Sayre;N. Strausfeld

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昆虫前脑中的成对中心,称为蘑菇体,已经成为任何无脊椎动物中研究最多的脑区,这是由于新的遗传策略,这些中心的独特形态属性与它们在学习和记忆中的功能作用相关。在螳螂虾中发现了具有双髁昆虫所有形态特征的蘑菇体,螳螂虾是甲壳纲中物种最丰富的真甲纲(Eumalacostraca)的姐妹。然而,除非可以在真甲亚纲中鉴定出其他蘑菇体的例子,否则蘑菇体样中心可能在Hoplocarida中经历了趋同进化,并且是这个甲壳动物谱系所独有的。在这里,我们提供的证据,反对趋同进化,详细描述了成对的蘑菇机构在侧procerebrum的十足类甲壳动物,Lebbeus groenlandicus,一个物种属于下Caridea,一个古老的血统Eumalacostraca。
Paired centers in the forebrain of insects, called the mushroom bodies, have become the most investigated brain region of any invertebrate due to novel genetic strategies that relate unique morphological attributes of these centers to their functional roles in learning and memory. Mushroom bodies possessing all the morphological attributes of those in dicondylic insects have been identified in mantis shrimps, basal hoplocarid crustaceans that are sister to Eumalacostraca, the most species‐rich group of Crustacea. However, unless other examples of mushroom bodies can be identified in Eumalacostraca, the possibility is that mushroom body‐like centers may have undergone convergent evolution in Hoplocarida and are unique to this crustacean lineage. Here, we provide evidence that speaks against convergent evolution, describing in detail the paired mushroom bodies in the lateral protocerebrum of a decapod crustacean, Lebbeus groenlandicus, a species belonging to the infraorder Caridea, an ancient lineage of Eumalacostraca.
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