The amygdaloid body of two carnivore species: The feliform banded mongoose and the caniform domestic ferret
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The amygdaloid body of two carnivore species: The feliform banded mongoose and the caniform domestic ferret. / Pillay, Sashrika; Bhagwandin, Adhil; Bertelsen, Mads F.; Patzke, Nina; Engler, Gerhard; Engel, Andreas K.; Manger, Paul R.
In: J COMP NEUROL, Vol. 529, No. 1, 01.2021, p. 28-51.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - The amygdaloid body of two carnivore species: The feliform banded mongoose and the caniform domestic ferret
AU - Pillay, Sashrika
AU - Bhagwandin, Adhil
AU - Bertelsen, Mads F.
AU - Patzke, Nina
AU - Engler, Gerhard
AU - Engel, Andreas K.
AU - Manger, Paul R.
N1 - Funding Information: No specific acknowledgements. Publisher Copyright: © 2020 Wiley Periodicals LLC Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2021/1
Y1 - 2021/1
N2 - The current study provides an analysis of the cytoarchitecture, myeloarchitecture, and chemoarchitecture of the amygdaloid body of the banded mongoose (Mungos mungo) and domestic ferret (Mustela putorius furo). Using architectural and immunohistochemical stains, we observe that the organization of the nuclear and cortical portions of the amygdaloid complex is very similar in both species. The one major difference is the presence of a cortex-amygdala transition zone observed in the domestic ferret that is absent in the banded mongoose. In addition, the chemoarchitecture is, for the most part, quite similar in the two species, but several variances, such as differing densities of neurons expressing the calcium-binding proteins in specific nuclei are noted. Despite this, certain aspects of the chemoarchitecture, such as the cholinergic innervation of the magnocellular division of the basal nuclear cluster and the presence of doublecortin expressing neurons in the shell division of the accessory basal nuclear cluster, appear to be consistent features of the Eutherian mammal amygdala. The domestic ferret presented with an overall lower myelin density throughout the amygdaloid body than the banded mongoose, a feature that may reflect artificial selection in the process of domestication for increased juvenile-like behavior in the adult domestic ferret, such as a muted fear response. The shared, but temporally distant, ancestry of the banded mongoose and domestic ferret allows us to generate observations relevant to understanding the relative influence that phylogenetic constraints, adaptive evolutionary plasticity, and the domestication process may play in the organization and chemoarchitecture of the amygdaloid body.
AB - The current study provides an analysis of the cytoarchitecture, myeloarchitecture, and chemoarchitecture of the amygdaloid body of the banded mongoose (Mungos mungo) and domestic ferret (Mustela putorius furo). Using architectural and immunohistochemical stains, we observe that the organization of the nuclear and cortical portions of the amygdaloid complex is very similar in both species. The one major difference is the presence of a cortex-amygdala transition zone observed in the domestic ferret that is absent in the banded mongoose. In addition, the chemoarchitecture is, for the most part, quite similar in the two species, but several variances, such as differing densities of neurons expressing the calcium-binding proteins in specific nuclei are noted. Despite this, certain aspects of the chemoarchitecture, such as the cholinergic innervation of the magnocellular division of the basal nuclear cluster and the presence of doublecortin expressing neurons in the shell division of the accessory basal nuclear cluster, appear to be consistent features of the Eutherian mammal amygdala. The domestic ferret presented with an overall lower myelin density throughout the amygdaloid body than the banded mongoose, a feature that may reflect artificial selection in the process of domestication for increased juvenile-like behavior in the adult domestic ferret, such as a muted fear response. The shared, but temporally distant, ancestry of the banded mongoose and domestic ferret allows us to generate observations relevant to understanding the relative influence that phylogenetic constraints, adaptive evolutionary plasticity, and the domestication process may play in the organization and chemoarchitecture of the amygdaloid body.
KW - amygdala
KW - Carnivora
KW - chemoarchitecture
KW - cytoarchitecture
KW - myeloarchitecture
KW - RRID: AB_10000323
KW - RRID: AB_10000340
KW - RRID: AB_10000343
KW - RRID: AB_2079751
KW - RRID: AB_2187552
KW - RRID: AB_91545
KW - RRID: AB_AB2088494
KW - RRUD: AB_509997
KW - social behavior
UR - http://www.scopus.com/inward/record.url?scp=85092710992&partnerID=8YFLogxK
U2 - 10.1002/cne.25046
DO - 10.1002/cne.25046
M3 - SCORING: Journal article
C2 - 33009661
AN - SCOPUS:85092710992
VL - 529
SP - 28
EP - 51
JO - J COMP NEUROL
JF - J COMP NEUROL
SN - 0021-9967
IS - 1
ER -