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The birth of the synapse.

Brain Struct. Funct. 222, 3369–3374 (2017)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
It has long been held that the rise of neurons as a specialized cell type also marked the onset of the grand evolutionary journey for chemical synapses. Research over recent decades has shown, however, that the most dynamic chapters of synaptic history have been ‘written’ out of the context of neurobiology and neuronal evolution, dating back to the early metazoa and unicellular living forms. Here, I consider and discuss emerging evidence suggesting the exaptive origin of chemical synapses, via tinkering and neo-functionalization of already existent junctional morphologies and constituents of primeval paracrine signalling. Through combination and collateral use of long-established structures and functions, a remarkable enrichment of regulatory and control mechanisms of complex living organisms was achieved, without large-scale reorganization of the genome, with tremendous impact on the evolution and life on our planet.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Chemical Synapse ; Exaptation ; Gap Junctions ; Synaptic Evolution; Electrical Synapses; Developing Neocortex; Neuronal Networks; Evolution; Diversity; System
ISSN (print) / ISBN 1863-2653
e-ISSN 1863-2661
Quellenangaben Volume: 222, Issue: 8, Pages: 3369–3374 Article Number: , Supplement: ,
Publisher Springer
Publishing Place Berlin ; Heidelberg
Non-patent literature Publications
Reviewing status Peer reviewed