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  • team
  • department
  • center
  • program_project
  • nrc
  • whocc
  • project
  • software
  • tool
  • patent
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  • Assistant Professor
  • Associate Professor
  • Clinical Research Assistant
  • Clinical Research Nurse
  • Clinician Researcher
  • Department Manager
  • Dual-education Student
  • Full Professor
  • Honorary Professor
  • Lab assistant
  • Master Student
  • Non-permanent Researcher
  • Nursing Staff
  • Permanent Researcher
  • Pharmacist
  • PhD Student
  • Physician
  • Post-doc
  • Prize
  • Project Manager
  • Research Associate
  • Research Engineer
  • Retired scientist
  • Technician
  • Undergraduate Student
  • Veterinary
  • Visiting Scientist
  • Deputy Director of Center
  • Deputy Director of Department
  • Deputy Director of National Reference Center
  • Deputy Head of Facility
  • Director of Center
  • Director of Department
  • Director of Institute
  • Director of National Reference Center
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© Research
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Published in Nature - 31 Mar 1994

Cohen-Tannoudji M, Babinet C, Wassef M

Link to Pubmed [PMID] – 8133892

Nature 1994 Mar;368(6470):460-3

The mammalian neocortex is subdivided into functionally distinct areas differing in cytoarchitecture and connectivity. Areal specification is thought to occur late in development and to be controlled by extrinsic cues, particularly thalamic afferents. We have produced a transgenic mouse line in which beta-galactosidase expression in the neocortex is largely restricted to layer-IV neurons of the somatosensory area. Transgene expression in these mice may be considered as an intrinsic marker of a somatosensory cortex identity. We investigated whether the fate of pieces of embryonic cortex from transgenic embryos is modified after transplantation to ectopic locations. Parietal or occipital cortex obtained on embryonic days 14-16 maintained their characteristics with respect to transgene expression after heterotopic transplantation to the cerebellum or neocortex of newborn hosts. This shows that the specification of neocortical areas involves a previously unsuspected early step of areal determination.