The achaete–scute complex proneural genes contribute to neural precursor specification in the Drosophila CNS

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The achaete–scute complex proneural genes contribute to neural precursor specification in the Drosophila CNS

BACKGROUND The Drosophila central nervous system (CNS) develops from a segmentally reiterated array of 30 neural precursors. Each precursor acquires a unique identity and goes through a stereotyped cell lineage to produce an invariant family of neurons and/or glia. The proneural genes achaete, scute and lethal of scute are required for neural precursor formation in the Drosophila CNS, and are e...

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Fly glial cells in the wing peripheral nervous system of Drosophila melanogaster originate from underlying epithelial cells. Two findings indicate that gliogenesis is closely associated with neurogenesis. First, it only occurs in regions that also give rise to sensory organs. Second, in mutants that induce the development of ectopic sensory organs glial cells develop at new positions. These fin...

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Slit signaling promotes the terminal asymmetric division of neural precursor cells in the Drosophila CNS.

The bipotential Ganglion Mother Cells, or GMCs, in the Drosophila CNS asymmetrically divide to generate two distinct post-mitotic neurons. Here, we show that the midline repellent Slit (Sli), via its receptor Roundabout (Robo), promotes the terminal asymmetric division of GMCs. In GMC-1 of the RP2/sib lineage, Slit promotes asymmetric division by down regulating two POU proteins, Nubbin and Mit...

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Proneural function of neurogenic genes in the developing Drosophila eye

BACKGROUND . Intercellular signals are major determinants of cell fate during development. Certain signals and receptors are important for many different cell-fate decisions, suggesting that cellular responses to similar signals change during development. Few transitions between such distinct cellular responses have been studied. The Drosophila genes Notch and hedgehog function during intracell...

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ژورنال

عنوان ژورنال: Current Biology

سال: 1996

ISSN: 0960-9822

DOI: 10.1016/s0960-9822(02)70681-7