Olfactory pathway in Xibalbanus tulumensis: remipedian hemiellipsoid body as homologue of hexapod mushroom body
Olfactory pathway in Xibalbanus tulumensis: remipedian hemiellipsoid body as homologue of hexapod mushroom body
复制标题
Xibalbanus tulumensis 的嗅觉通路:半椭圆体作为六足蘑菇体的同源物
DOI:
10.1007/s00441-015-2275-8
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发表时间:
2016
影响因子:
3.6
通讯作者:
G Bicker G
中科院分区:
文献类型:
--
作者:
Stemme T;Iliffe TM;G Bicker G
The Remipedia have been proposed to be the crustacean sister group of the Hexapoda. These blind cave animals heavily rely on their chemical sense and are thus rewarding subjects for the analysis of olfactory pathways. The evolution of these pathways as a character for arthropod phylogeny has recently received increasing attention. Here, we investigate the situation inXibalbanus tulumensisby focal dye injections and immunolabelling of the catalytic subunit of the cAMP-dependent protein kinase (DC0), an enzyme particularly enriched in insect mushroom bodies. DC0 labelling of the hemiellipsoid body suggests its subdivision into a cap-like and a core neuropil. Immunofluorescence of the enzyme glutamic acid decarboxylase (GAD), which synthesizes γ-aminobutyric acid (GABA), has revealed a cluster of GABAergic interneurons in the hemiellipsoid body, reminiscent of the characteristic feedback neurons of the mushroom body. Thus, the hemiellipsoid body ofXibalbanusshares many of the characteristics of insect mushroom bodies. Nevertheless, the general neuroanatomy of the olfactory pathway in the Remipedia strongly corresponds to the malacostracan ground pattern. Given that the Remipedia are probably the sister group of the Hexapoda, the phylogenetic appearance of the typical neuropilar compartments in the insect mushroom body has to be assigned to the origins of the Hexapoda.
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影响因子:
2.8
作者:
Heuer CM;Müller CH;Todt C;Loesel R
通讯作者:
Loesel R
影响因子:
3.4
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Stemme T;Iliffe TM;Bicker G;Harzsch S;Koenemann S
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作者:
LANE, ME;KALDERON, D
通讯作者:
KALDERON, D
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2.5
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J. M. Sullivan;B. Beltz
通讯作者:
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