Cárdenas, A.* ; Villalba, A.* ; de Juan Romero, C.* ; Picó, E.* ; Kyrousi, C.* ; Tzika, A.C.* ; Tessier-Lavigne, M.* ; Ma, L.* ; Drukker, M. ; Cappello, S.* ; Borrell, V.*
Evolution of cortical neurogenesis in amniotes controlled by robo signaling levels.
Cell 174, 590-606.e21 (2018)
Cerebral cortex size differs dramatically between reptiles, birds, and mammals, owing to developmental differences in neuron production. In mammals, signaling pathways regulating neurogenesis have been identified, but genetic differences behind their evolution across amniotes remain unknown. We show that direct neurogenesis from radial glia cells, with limited neuron production, dominates the avian, reptilian, and mammalian paleocortex, whereas in the evolutionarily recent mammalian neocortex, most neurogenesis is indirect via basal progenitors. Gain- and loss-of-function experiments in mouse, chick, and snake embryos and in human cerebral organoids demonstrate that high Slit/Robo and low Dll1 signaling, via Jag1 and Jag2, are necessary and sufficient to drive direct neurogenesis. Attenuating Robo signaling and enhancing Dll1 in snakes and birds recapitulates the formation of basal progenitors and promotes indirect neurogenesis. Our study identifies modulation in activity levels of conserved signaling pathways as a primary mechanism driving the expansion and increased complexity of the mammalian neocortex during amniote evolution.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Notch ; Pax6 ; Tbr2 ; Electroporation ; Evolution ; Intermediate Progenitor ; Microcephaly ; Radial Glia; Outer Subventricular Zone; Progenitor-cell Division; Radial Glial-cells; Mammalian Telencephalon; Mouse Telencephalon; Basal Progenitors; Olfactory-bulb; Neurons Arise; Axon Guidance; Neural Stem
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2018
Prepublished im Jahr
HGF-Berichtsjahr
2018
ISSN (print) / ISBN
0092-8674
e-ISSN
1097-4172
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 174,
Heft: 3,
Seiten: 590-606.e21
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Cell Press
Verlagsort
Cambridge, Mass.
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
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Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er)
Stem Cell and Neuroscience
PSP-Element(e)
G-552400-001
Förderungen
Copyright
Erfassungsdatum
2018-06-27