Brain anatomy in Diplura (Hexapoda).
Brain anatomy in Diplura (Hexapoda).
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DOI：
10.1186/1742-9994-9-26
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发表时间：
2012-10-11
影响因子：
2.8
通讯作者：
Pass G
中科院分区：
文献类型：
--
作者：
Böhm A;Szucsich NU;Pass G
在过去的十年中，神经解剖学已被证明是性格系统的宝贵来源，可以提供对节肢动物关系的见解。由于对 Dipluraran 大脑解剖学最详细的描述可以追溯到 Hanström (1940)，我们利用现代神经解剖学技术重新研究了 Campodea augens 和 Catajapyx aquilonaris 的大脑。分析基于半薄切片系列中主要神经纤维和纤维束的抗体染色和 3D 重建。所研究的双普拉脑的显着特征是一个巨大的中央体，它被组织成九列和三层，以及发育良好的蘑菇体，其花萼接收来自中脑中球形嗅球的输入。使用针对蛋白激酶 A (DC0) 催化亚基的抗体染色来进一步表征蘑菇体。 japygid Catajapyx aquilonaris 拥有跨越中线连接的蘑菇体，这是六足动物中的独特情况。蘑菇体和中央身体结构显示出japygids和campodeids之间的高度对应性。一些独特的特征表明神经解剖学进一步支持了 Diplura 的单系性。然而，在更广泛的系统发育背景下，大脑特征的两极分化变得模糊不清。 Diplura 的蘑菇体和中央体在几个方面与 Dicondylia 相似，表明具有同源性。相比之下，古颌动物完全缺乏蘑菇体，并表现出令人想起某些软甲壳类甲壳类动物的中央身体组织。讨论了六足树底部大脑进化的几种假设。
In the past decade neuroanatomy has proved to be a valuable source of character systems that provide insights into arthropod relationships. Since the most detailed description of dipluran brain anatomy dates back to Hanström (1940) we re-investigated the brains of Campodea augens and Catajapyx aquilonaris with modern neuroanatomical techniques. The analyses are based on antibody staining and 3D reconstruction of the major neuropils and tracts from semi-thin section series. Remarkable features of the investigated dipluran brains are a large central body, which is organized in nine columns and three layers, and well developed mushroom bodies with calyces receiving input from spheroidal olfactory glomeruli in the deutocerebrum. Antibody staining against a catalytic subunit of protein kinase A (DC0) was used to further characterize the mushroom bodies. The japygid Catajapyx aquilonaris possesses mushroom bodies which are connected across the midline, a unique condition within hexapods. Mushroom body and central body structure shows a high correspondence between japygids and campodeids. Some unique features indicate that neuroanatomy further supports the monophyly of Diplura. In a broader phylogenetic context, however, the polarization of brain characters becomes ambiguous. The mushroom bodies and the central body of Diplura in several aspects resemble those of Dicondylia, suggesting homology. In contrast, Archaeognatha completely lack mushroom bodies and exhibit a central body organization reminiscent of certain malacostracan crustaceans. Several hypotheses of brain evolution at the base of the hexapod tree are discussed.
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影响因子：
2
作者：
Farris, Sarah M.;Pettrey, Colleen;Daly, Kevin C.
通讯作者：
Daly, Kevin C.
线粒体蛋白质编码基因的系统发育分析证实了己糖和甲壳类的互惠。
影响因子：
3.4
作者：
Carapelli, Antonio;Lio, Pietro;Nardi, Francesco;van der Wath, Elizabeth;Frati, Francesco
通讯作者：
Frati, Francesco
影响因子：
2
作者：
Dallai, Romano;Mercati, David;Frati, Francesco
通讯作者：
Frati, Francesco
影响因子：
2.9
作者：
Farris, SM
通讯作者：
Farris, SM
影响因子：
2.6
作者：
Eisenhardt, D;Fiala, A;Menzel, R
通讯作者：
Menzel, R