منابع مشابه
Echinoid limits R8 photoreceptor specification by inhibiting inappropriate EGF receptor signalling within R8 equivalence groups.
EGF receptor signalling plays diverse inductive roles during development. To achieve this, its activity must be carefully regulated in a variety of ways to control the time, pattern, intensity and duration of signalling. We show that the cell surface protein Echinoid is required to moderate Egfr signalling during R8 photoreceptor selection by the proneural gene atonal during Drosophila eye deve...
متن کاملTwo-step selection of a single R8 photoreceptor: a bistable loop between senseless and rough locks in R8 fate.
Patterning of sensory organs requires precise regulation of neural induction and repression. The neurocrystalline pattern of the adult Drosophila compound eye is generated by ordered selection of single founder photoreceptors (R8s) for each unit eye or ommatidium. R8 selection requires mechanisms that restrict R8 potential to a single cell from within a group of cells expressing the proneural g...
متن کاملAb initio study of silicon in the R8 phase
We present a detailed ab initio study of the electronic and structural properties of the recently discovered R8 phase of silicon. Within the framework of density-functional theory in the local-density approximation and using pseudopotentials with a plane-wave basis, we study the energetics of the R8 phase compared to the other tetrahedrally bonded diamond, b-Sn, and BC8 phases. The bonding prop...
متن کاملTremendous Impact of R8 Control System with Robots
As with any business decision, there are pros and cons to integrating automated robotic systems into your workplace. It's important to take time to consider the facts and evaluate your needs. The paper points how control offers the user a comfortable graphical user interface via the touch screen “TeachBox ” for direct selection of all functions. The IPC based R8 control with its functional rang...
متن کاملEctopic scute induces Drosophila ommatidia development without R8 founder photoreceptors.
During development of the Drosophila peripheral nervous system, different proneural genes encoding basic helix-loop-helix transcription factors are required for different sensory organs to form. atonal (ato) is the proneural gene required for chordotonal organs and R8 photoreceptors, whereas the achaete-scute complex contains proneural genes for external sensory organs such as the macrochaetae,...
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ژورنال
عنوان ژورنال: Atlas of Genetics and Cytogenetics in Oncology and Haematology
سال: 2018
ISSN: 1768-3262
DOI: 10.4267/2042/68754