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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Serotonin-immunoreactivity in the ventral nerve cord of Pycnogonida – support for individually identifiable neurons as ancestral feature of the arthropod nervous system

Fig. 3

Architectural features of pycnogonid walking leg ganglia exemplified by C. japonicus. a: Optical horizontal sections through walking leg ganglion 1 labeled with lipophilic marker FM 1-43FX. Uppermost image farther ventral than lower one. Selected elongate and ovoid glomerulus-like neuropils are marked (stars and asterisks, respectively). b: Optical transverse section through walking leg ganglion 3, tubulin labeling (red) and SLI (green). Selected elongate and ovoid glomerulus-like neuropils are marked in the ventral lobe (stars and asterisks, respectively). Note neurite bundles that branch off the root of the segmental nerve and project into the ventral lobe with its glomerulus-like neuropils. Small arrowheads highlight the contralaterally extending DMN neurite in the postero-ventral commissure

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BMC Ecology and Evolution

ISSN: 2730-7182

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