Cited by 68Neurogenesis and neuroplasticity mechanismsRetinal Development and DisordersSingle-cell and spatial transcriptomics

Diversification of multipotential postmitotic mouse retinal ganglion cell precursors into discrete types

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Shekhar, Karthik, Whitney, Irene E, Butrus, Salwan, Peng, Yi-Rong, Sanes, Joshua R·2022·eLife

Published version of a preprint

Abstract

The genesis of broad neuronal classes from multipotential neural progenitor cells has been extensively studied, but less is known about the diversification of a single neuronal class into multiple types. We used single-cell RNA-seq to study how newly born (postmitotic) mouse retinal ganglion cell (RGC) precursors diversify into ~45 discrete types. Computational analysis provides evidence that RGC transcriptomic type identity is not specified at mitotic exit, but acquired by gradual, asynchronous restriction of postmitotic multipotential precursors. Some types are not identifiable until a week after they are generated. Immature RGCs may be specified to project ipsilaterally or contralaterally to the rest of the brain before their type identity emerges. Optimal transport inference identifies groups of RGC precursors with largely nonoverlapping fates, distinguished by selectively expressed transcription factors that could act as fate determinants. Our study provides a framework for investigating the molecular diversification of discrete types within a neuronal class.

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  • The development of a cell type may not follow a simple trajectory but involves multiple steps of divergent or convergent differentiation.

    “The development of a cell type may not follow a simple trajectory but involves multiple steps of divergent or convergent differentiation (Shekhar et al., 2022), the former due to the multipotency of progenitors or transitional cell types and the latter due to convergence of different transitional types.”

    From What is a cell type and how to define it? (2022) · cites this paper as Shekhar et al., 2022

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  1. Dowling JE 2012 The Retina: An Approachable Part of the Brain 2nd ed Harvard University Press

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Authors
Shekhar, K., Whitney, I. E., Butrus, S., Peng, Y.-R., & Sanes, J. R.
Affiliations
  • QB3 (US)
  • Harvard University (US)
Corresponding author
  • Shekhar, Karthik
  • Sanes, Joshua R
Venue
eLife
Published
2022-02-22
Volume
11
ISSN
2050-084X (ISSN-L)
OpenAlex
W4225688952
Cited by
68
References
98
Citations by year
2026: 11 · 2025: 13 · 2024: 17 · 2023: 16 · 2022: 11
FWCI
5.22
Type
journal article
Language
en
Open access
Locations
  • eLife (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • eScholarship (California Digital Library) (submittedVersion, cc-by)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • National Institutes of Health (R37NS029169, R01EY022073, R00EY028625)
  • National Science Foundation (GRP DGE1752814)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
Keywords
retinal ganglion cells, single-cell transcriptomics, transcription factors, ipsilateral and contralateral projections, retinal development, mouse retina
MeSH terms
Animals, Mice, Transgenic, Retina, Retinal Ganglion Cells, Transcription Factors, Mice

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