Cited by 70Neurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene RegulationGenetics and Neurodevelopmental Disorders

Hypothesis on the Dual Origin of the Mammalian Subplate

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Montiel, Juan F., Wang, Wei Zhi, Oeschger, Franziska M., Hoerder-Suabedissen, Anna, Tung, Wan Ling, García-Moreno, Fernando, Holm, Ida Elizabeth, Villalón, Aldo +1 more·2011·Frontiers in Neuroanatomy

Abstract

The development of the mammalian neocortex relies heavily on subplate. The proportion of this cell population varies considerably in different mammalian species. Subplate is almost undetectable in marsupials, forms a thin, but distinct layer in mouse and rat, a larger layer in carnivores and big-brained mammals as pig, and a highly developed embryonic structure in human and non-human primates. The evolutionary origin of subplate neurons is the subject of current debate. Some hypothesize that subplate represents the ancestral cortex of sauropsids, while others consider it to be an increasingly complex phylogenetic novelty of the mammalian neocortex. Here we review recent work on expression of several genes that were originally identified in rodent as highly and differentially expressed in subplate. We relate these observations to cellular morphology, birthdating, and hodology in the dorsal cortex/dorsal pallium of several amniote species. Based on this reviewed evidence we argue for a third hypothesis according to which subplate contains both ancestral and newly derived cell populations. We propose that the mammalian subplate originally derived from a phylogenetically ancient structure in the dorsal pallium of stem amniotes, but subsequently expanded with additional cell populations in the synapsid lineage to support an increasingly complex cortical plate development. Further understanding of the detailed molecular taxonomy, somatodendritic morphology, and connectivity of subplate in a comparative context should contribute to the identification of the ancestral and newly evolved populations of subplate neurons.

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Crossref · 10.3389/fnana.2011.00025

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  • Many genes showed similar enrichment in developing mouse and human SP, including KCNAB1 and NR4A2.

    “Many genes showed similar enrichment in the developing mouse and human SP, including the known SP markers KCNAB1 and NR4A217,18,44 (Fig. 4b).”

    From Transcriptional landscape of the prenatal human brain (2014) · cites this paper as [17]

  • Species differences in distinct fetal transient zones, including SZ, SP, CP, and SG, have been described.

    “Species differences in distinct fetal transient zones, including the SZ2, SP17,18, CP6, and SG9, have also been described.”

    From Transcriptional landscape of the prenatal human brain (2014) · cites this paper as [17]

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2 of the 135 references couldn’t be matched to a known paper.

Research works printed but not linked: 2

  1. Kostović I. Jovanov-Milosević N. (2008). Subplate zone of the human brain: historical perspective and new concepts. Coll. Antropol. 32, 3– 8 18405051
  2. Molnár Z. Cordery P. (1999). Connections between cells of the internal capsule, thalamus, and cerebral cortex in embryonic rat. J. Comp. Neurol. 413, 1– 25 10464367

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Authors
Montiel, J. F., Wang, W. Z., Oeschger, F. M., Hoerder-Suabedissen, A., Tung, W. L., García-Moreno, F., Holm, I. E., Villalón, A., & Molnár, Z.
Affiliations
  • University of Oxford (GB)
  • Aarhus University (DK)
  • Universidad Diego Portales (CL)
Corresponding author
  • Montiel, Juan F.
  • Molnár, Zoltán
Venue
Frontiers in Neuroanatomy
Published
2011
Volume
5
Pages
25-25
ISSN
1662-5129 (ISSN-L)
OpenAlex
W1982422375
Cited by
70
References
135
Citations by year
2026: 2 · 2025: 2 · 2024: 5 · 2023: 3 · 2022: 2 · 2021: 2 · 2020: 8 · 2019: 4 · 2018: 5 · 2017: 4 · 2016: 4 · 2015: 5 · 2014: 9 · 2013: 6 · 2012: 6
FWCI
2.52
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Neuroanatomy (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Americanae (AECID Library) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
Funders
  • HistoGenetics
  • Medical Research Council (G00900901)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
Keywords
neocortex evolution, dorsal pallium, hodology, marsupials, primates

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