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Understanding the evolution of an undifferentiated ectodermal cell into a neural cell
This research is part of the "Neucecho" project, whose aim is to understand the various stages that lead an undifferentiated ectodermal cell (outer leaflet of the embryo) to become a neural cell (of the nervous system)...
during the early development of chordates (a group including fish, amphibians, reptiles, birds and mammals). The analysis takes place at both cellular and molecular levels. Using a single-cell RNA sequencing approach (scRNA-seq), the intention is to dynamically decipher how certain undifferentiated ectodermal cells of the cephalochordate embryo (here amphioxus) become neural. The aim is also to understand how the various genes involved in the gene regulatory network of neural induction are expressed in each of these cells during the early stages of development. In this report, using a CRISPR/Cas9-based approach to invalidating the genes involved in this process, the researchers study the hierarchical structure of the genes involved in this network. This report was produced and financed as part of the "Science Avec et Pour la Société" (SAPS) call for projects.
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