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Neural pathways of olfactory kin imprinting and kin recognition in zebrafish

Authors
  • Gerlach, Gabriele1, 2, 3
  • Wullimann, Mario F.4, 5
  • 1 Carl-von-Ossietzky University,
  • 2 Helmholtz Institute for Functional Marine Biodiversity Oldenburg (HIFMB), 26129 Oldenburg, Germany
  • 3 James Cook University,
  • 4 Ludwig-Maximilians-Universität Munich,
  • 5 Max-Planck-Institute for Neurobiology,
Type
Published Article
Journal
Cell and Tissue Research
Publisher
Springer-Verlag
Publication Date
Jan 30, 2021
Volume
383
Issue
1
Pages
273–287
Identifiers
DOI: 10.1007/s00441-020-03378-4
PMID: 33515290
PMCID: PMC7873017
Source
PubMed Central
Keywords
Disciplines
  • Review
License
Unknown

Abstract

Teleost fish exhibit extraordinary cognitive skills that are comparable to those of mammals and birds. Kin recognition based on olfactory and visual imprinting requires neuronal circuits that were assumed to be necessarily dependent on the interaction of mammalian amygdala, hippocampus, and isocortex, the latter being a structure that teleost fish are lacking. We show that teleosts—beyond having a hippocampus and pallial amygdala homolog—also have subpallial amygdalar structures. In particular, we identify the medial amygdala and neural olfactory central circuits related to kin imprinting and kin recognition corresponding to an accessory olfactory system despite the absence of a separate vomeronasal organ.

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