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Direct and indirect neurogenesis generate a mosaic of distinct glutamatergic projection neuron types in cerebral cortex.

Publication ,  Journal Article
Huilgol, D; Levine, JM; Galbavy, W; Wang, B-S; He, M; Suryanarayana, SM; Huang, ZJ
Published in: Neuron
August 16, 2023

Variations in size and complexity of the cerebral cortex result from differences in neuron number and composition, rooted in evolutionary changes in direct and indirect neurogenesis (dNG and iNG) that are mediated by radial glia and intermediate progenitors (IPs), respectively. How dNG and iNG differentially contribute to neuronal number, diversity, and connectivity are unknown. Establishing a genetic fate-mapping method to differentially visualize dNG and iNG in mice, we found that while both dNG and iNG contribute to all cortical structures, iNG contributes the largest relative proportions to the hippocampus and neocortex. Within the neocortex, whereas dNG generates all major glutamatergic projection neuron (PN) classes, iNG differentially amplifies and diversifies PNs within each class; the two pathways generate distinct PN types and assemble fine mosaics of lineage-based cortical subnetworks. Our results establish a ground-level lineage framework for understanding cortical development and evolution by linking foundational progenitor types and neurogenic pathways to PN types.

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Published In

Neuron

DOI

EISSN

1097-4199

Publication Date

August 16, 2023

Volume

111

Issue

16

Start / End Page

2557 / 2569.e4

Location

United States

Related Subject Headings

  • Neurons
  • Neurology & Neurosurgery
  • Neurogenesis
  • Neocortex
  • Mice
  • Interneurons
  • Hippocampus
  • Cerebral Cortex
  • Animals
  • 5202 Biological psychology
 

Citation

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Huilgol, D., Levine, J. M., Galbavy, W., Wang, B.-S., He, M., Suryanarayana, S. M., & Huang, Z. J. (2023). Direct and indirect neurogenesis generate a mosaic of distinct glutamatergic projection neuron types in cerebral cortex. Neuron, 111(16), 2557-2569.e4. https://doi.org/10.1016/j.neuron.2023.05.021
Huilgol, Dhananjay, Jesse M. Levine, William Galbavy, Bor-Shuen Wang, Miao He, Shreyas M. Suryanarayana, and Z Josh Huang. “Direct and indirect neurogenesis generate a mosaic of distinct glutamatergic projection neuron types in cerebral cortex.Neuron 111, no. 16 (August 16, 2023): 2557-2569.e4. https://doi.org/10.1016/j.neuron.2023.05.021.
Huilgol D, Levine JM, Galbavy W, Wang B-S, He M, Suryanarayana SM, et al. Direct and indirect neurogenesis generate a mosaic of distinct glutamatergic projection neuron types in cerebral cortex. Neuron. 2023 Aug 16;111(16):2557-2569.e4.
Huilgol, Dhananjay, et al. “Direct and indirect neurogenesis generate a mosaic of distinct glutamatergic projection neuron types in cerebral cortex.Neuron, vol. 111, no. 16, Aug. 2023, pp. 2557-2569.e4. Pubmed, doi:10.1016/j.neuron.2023.05.021.
Huilgol D, Levine JM, Galbavy W, Wang B-S, He M, Suryanarayana SM, Huang ZJ. Direct and indirect neurogenesis generate a mosaic of distinct glutamatergic projection neuron types in cerebral cortex. Neuron. 2023 Aug 16;111(16):2557-2569.e4.
Journal cover image

Published In

Neuron

DOI

EISSN

1097-4199

Publication Date

August 16, 2023

Volume

111

Issue

16

Start / End Page

2557 / 2569.e4

Location

United States

Related Subject Headings

  • Neurons
  • Neurology & Neurosurgery
  • Neurogenesis
  • Neocortex
  • Mice
  • Interneurons
  • Hippocampus
  • Cerebral Cortex
  • Animals
  • 5202 Biological psychology