Temporal patterning of apical progenitors and their daughter neurons in the developing neocortex

L. Telley, G. Agirman, J. Prados, N. Amberg, S. Fièvre, P. Oberst, G. Bartolini, I. Vitali, C. Cadilhac, S. Hippenmeyer, L. Nguyen, A. Dayer, D. Jabaudon, Science 364 (2019) eaav2522.

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Journal Article | Published | English
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Abstract
During corticogenesis, distinct subtypes of neurons are sequentially born from ventricular zone progenitors. How these cells are molecularly temporally patterned is poorly understood. We used single-cell RNA sequencing at high temporal resolution to trace the lineage of the molecular identities of successive generations of apical progenitors (APs) and their daughter neurons in mouse embryos. We identified a core set of evolutionarily conserved, temporally patterned genes that drive APs from internally driven to more exteroceptive states. We found that the Polycomb repressor complex 2 (PRC2) epigenetically regulates AP temporal progression. Embryonic age–dependent AP molecular states are transmitted to their progeny as successive ground states, onto which essentially conserved early postmitotic differentiation programs are applied, and are complemented by later-occurring environment-dependent signals. Thus, epigenetically regulated temporal molecular birthmarks present in progenitors act in their postmitotic progeny to seed adult neuronal diversity.
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Date Published
2019-05-10
Journal Title
Science
Volume
364
Issue
6440
Article Number
eaav2522
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Telley L, Agirman G, Prados J, et al. Temporal patterning of apical progenitors and their daughter neurons in the developing neocortex. Science. 2019;364(6440):eaav2522. doi:10.1126/science.aav2522
Telley, L., Agirman, G., Prados, J., Amberg, N., Fièvre, S., Oberst, P., … Jabaudon, D. (2019). Temporal patterning of apical progenitors and their daughter neurons in the developing neocortex. Science, 364(6440), eaav2522. https://doi.org/10.1126/science.aav2522
Telley, L, G Agirman, J Prados, Nicole Amberg, S Fièvre, P Oberst, G Bartolini, et al. “Temporal Patterning of Apical Progenitors and Their Daughter Neurons in the Developing Neocortex.” Science 364, no. 6440 (2019): eaav2522. https://doi.org/10.1126/science.aav2522.
L. Telley et al., “Temporal patterning of apical progenitors and their daughter neurons in the developing neocortex,” Science, vol. 364, no. 6440, p. eaav2522, 2019.
Telley L, Agirman G, Prados J, Amberg N, Fièvre S, Oberst P, Bartolini G, Vitali I, Cadilhac C, Hippenmeyer S, Nguyen L, Dayer A, Jabaudon D. 2019. Temporal patterning of apical progenitors and their daughter neurons in the developing neocortex. Science. 364(6440), eaav2522.
Telley, L., et al. “Temporal Patterning of Apical Progenitors and Their Daughter Neurons in the Developing Neocortex.” Science, vol. 364, no. 6440, AAAS, 2019, p. eaav2522, doi:10.1126/science.aav2522.

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PMID: 31073041
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