Abstract:
:Across species, sleep in young animals is critical for normal brain maturation. The molecular determinants of early life sleep remain unknown. Through an RNAi-based screen, we identified a gene, pdm3, required for sleep maturation in Drosophila. Pdm3, a transcription factor, coordinates an early developmental program that prepares the brain to later execute high levels of juvenile adult sleep. PDM3 controls the wiring of wake-promoting dopaminergic (DA) neurites to a sleep-promoting region, and loss of PDM3 prematurely increases DA inhibition of the sleep center, abolishing the juvenile sleep state. RNA-Seq/ChIP-Seq and a subsequent modifier screen reveal that pdm3 represses expression of the synaptogenesis gene Msp300 to establish the appropriate window for DA innervation. These studies define the molecular cues governing sleep behavioral and circuit development, and suggest sleep disorders may be of neurodevelopmental origin.
journal_name
Elifejournal_title
eLifeauthors
Chakravarti Dilley L,Szuperak M,Gong NN,Williams CE,Saldana RL,Garbe DS,Syed MH,Jain R,Kayser MSdoi
10.7554/eLife.52676subject
Has Abstractpub_date
2020-03-23 00:00:00issn
2050-084Xpii
52676journal_volume
9pub_type
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