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  4. Single-cell transcriptional logic of cell-fate specification and axon guidance in early-born retinal neurons
 
research article

Single-cell transcriptional logic of cell-fate specification and axon guidance in early-born retinal neurons

Lo Giudice, Quentin
•
Leleu, Marion  
•
La Manno, Gioele  
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September 1, 2019
Development

Retinal ganglion cells (RGCs), cone photoreceptors (cones), horizontal cells and amacrine cells are the first classes of neurons produced in the retina. However, an important question is how this diversity of cell states is transcriptionally produced. Here, we profiled 6067 single retinal cells to provide a comprehensive transcriptomic atlas showing the diversity of the early developing mouse retina. RNA velocities unveiled the dynamics of cell cycle coordination of early retinogenesis and define the transcriptional sequences at work during the hierarchical production of early cell-fate specification. We show that RGC maturation follows six waves of gene expression, with older-generated RGCs transcribing increasing amounts of guidance cues for young peripheral RGC axons that express the matching receptors. Spatial transcriptionally deduced features in subpopulations of RGCs allowed us to define novel molecular markers that are spatially restricted. Finally, the isolation of such a spatially restricted population, ipsilateral RGCs, allowed us to identify their molecular identity at the time they execute axon guidance decisions. Together, these data represent a valuable resource shedding light on transcription factor sequences and guidance cue dynamics during mouse retinal development.

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Type
research article
DOI
10.1242/dev.178103
Web of Science ID

WOS:000486297400015

Author(s)
Lo Giudice, Quentin
Leleu, Marion  
La Manno, Gioele  
Fabre, Pierre J.
Date Issued

2019-09-01

Published in
Development
Volume

146

Issue

17

Article Number

dev178103

Subjects

Developmental Biology

•

neurogenesis

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retinal development

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single-cell rna-seq

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retinal ganglion cell

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axon guidance

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cell-fate specification

•

mouse

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gene-expression

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ciliary margin

•

ganglion-cells

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optic chiasm

•

multipotent precursors

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binocular vision

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progenitor

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differentiation

•

growth

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
UPLAMANNO  
Available on Infoscience
October 3, 2019
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/161783
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