ArticleFrontiers in neuroanatomy2014
Genetic identification of the central nucleus and other components of the central extended amygdala in chicken during development.
Article in Frontiers in neuroanatomy, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 19 papers.
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19 citing papers in PubMed, 36 citations in OpenAlex.
- Adult Striatal Neurogenesis-A Comparative Approach Between Pigeons, Mice, Macaques, and Human.The Journal of comparative neurology · 2025Article
- Editorial: Dopaminoceptive forebrain regions: a search for structural and functional organization underlying normal and impaired social adaptation.Frontiers in neuroanatomy · 2025Article
- Characterization of the tyrosine-hydroxylase immunoreactive components of the basal subpallium in sharks-toward an identification of a basal subpallial complex.Frontiers in neuroanatomy · 2025Article
- Neurochemistry and circuit organization of the lateral spiriform nucleus of birds: A uniquely nonmammalian direct pathway component of the basal ganglia.The Journal of comparative neurology · 2024Article
- Molecular and cellular evolution of the amygdala across species analyzed by single-nucleus transcriptome profiling.Cell discovery · 2023Article
- Early cellular and synaptic changes in dopaminoceptive forebrain regions of juvenile mice following gestational exposure to valproate.Frontiers in neuroanatomy · 2023Article
- Molecular biology of serotonergic systems in avian brains.Frontiers in molecular neuroscience · 2023Review
- Developmental-Based Classification of Enkephalin and Somatostatin Containing Neurons of the Chicken Central Extended Amygdala.Frontiers in physiology · 2022Article
- Distinct Subdivisions in the Transition Between Telencephalon and Hypothalamus Produce Otp and Sim1 Cells for the Extended Amygdala in Sauropsids.Frontiers in neuroanatomy · 2022Article
- Telencephalic regulation of the HPA axis in birds.Neurobiology of stress · 2021Article
- Molecular architecture of the zebra finch arcopallium.The Journal of comparative neurology · 2019Article
- Evolution of Pallial Areas and Networks Involved in Sociality: Comparison Between Mammals and Sauropsids.Frontiers in physiology · 2019Article
- Expression of regulatory genes in the embryonic brain of a lizard and implications for understanding pallial organization and evolution.The Journal of comparative neurology · 2018Article
- Multiple amygdaloid divisions of arcopallium send convergent projections to the nucleus accumbens and neighboring subpallial amygdala regions in the domestic chicken: a selective pathway tracing and reconstruction study.Brain structure & function · 2017Article
- Wfs1 is expressed in dopaminoceptive regions of the amniote brain and modulates levels of D1-like receptors.PloS one · 2017Article
- Genoarchitecture of the extended amygdala in zebra finch, and expression of FoxP2 in cell corridors of different genetic profile.Brain structure & function · 2017Article
- Neurochemical compartmentalization within the pigeon basal ganglia.Journal of chemical neuroanatomy · 2016Article
- Dehydroepiandrosterone Heightens Aggression and Increases Androgen Receptor and Aromatase mRNA Expression in the Brain of a Male Songbird.Journal of neuroendocrinology · 2016Article
- On and Off switches in the brain.Frontiers in behavioral neuroscience · 2015Article
Corrections and comments
- Erratum issued
Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In mammals, the central extended amygdala shows a highly complex organization, and is essential for animal survival due to its implication in fear responses. However, many aspects of its evolution are still unknown, and this structure is especially poorly understood in birds. The aim of this study was to define the central extended amygdala in chicken, by means of a battery of region-specific transcription factors (Pax6, Islet1, Nkx2.1) and phenotypic markers that characterize these different subdivisions in mammals. Our results allowed the identification of at least six distinct subdivisions in the lateral part of the avian central extended amygdala: (1) capsular central subdivision; (2) a group of intercalated-like cell patches; (3) oval central nucleus; (4) peri-intrapeduncular (peri-INP) island field; (5) perioval zone; and (6) a rostral part of the subpallial extended amygdala. In addition, we identified three subdivisions of the laterodorsal bed nucleus of the stria terminalis (BSTLd) belonging to the medial region of the chicken central extended amygdala complex. Based on their genetic profile, cellular composition and apparent embryonic origin of the cells, we discuss the similarity of these different subdivisions of chicken with different parts of the mouse central amygdala and surrounding cell masses, including the intercalated amygdalar masses and the sublenticular part of the central extended amygdala. Most of the subdivisions include various subpopulations of cells that apparently originate in the dorsal striatal, ventral striatal, pallidal, and preoptic embryonic domains, reaching their final location by either radial or tangential migrations. Similarly to mammals, the central amygdala and BSTLd of chicken project to the hypothalamus, and include different neurons expressing proenkephalin, corticotropin-releasing factor, somatostatin or tyrosine hydroxylase, which may be involved in the control of different aspects of fear/anxiety-related behavior.
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