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The process whose specific outcome is the progression of an open tracheal system over time, from its formation to the mature structure. An open tracheal system is a respiratory system, a branched network of epithelial tubes that supplies oxygen to target tissues via spiracles. An example of this is found in Drosophila melanogaster. The commitment of cells to specific cell fates and their capacity to differentiate into particular kinds of cells. Positional information is established through protein signals that emanate from a localized source within a cell (the initial one-cell zygote) or within a developmental field. The progression of the respiratory system over time from its formation to its mature structure. The respiratory system carries out respiratory gaseous exchange. The process involved in the specification of cell identity. Once specification has taken place, a cell will be committed to differentiate down a specific pathway if left in its normal environment. Process by which a cell becomes capable of differentiating autonomously into a fusion cell in an environment that is neutral with respect to the developmental pathway; upon specification, the cell fate can be reversed. Fusion cells allow the interconnection of adjacent tracheal metameres during tracheal tube fusion. A biological process whose specific outcome is the progression of a cell over time from an initial condition to a later condition. Process by which a cell in an open tracheal system becomes capable of differentiating autonomously into a terminal cell in an environment that is neutral with respect to the developmental pathway; upon specification, the cell fate can be reversed. Terminal cells send long and bifurcated hollow branches toward target tissues to allow oxygen exchange. Allocation of epithelial cells within each migrating branch in an open tracheal system to distinct tracheal cell fates. During the migration phase each branch forms a well-defined number of cell types (including fusion cells, terminal cells and branch cells) at precise positions.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: epithelial cell type specification, open tracheal system
Acc: GO:0035153
Aspect: Biological Process
Desc: Allocation of epithelial cells within each migrating branch in an open tracheal system to distinct tracheal cell fates. During the migration phase each branch forms a well-defined number of cell types (including fusion cells, terminal cells and branch cells) at precise positions.
Synonyms:
  • tracheal epithelial cell type specification
  • tracheal cell type specification
Proteins in PDR annotated with:
   This term: 2 [Search]
   Term or descendants: 19 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0035153 - epithelial cell type specification, open tracheal system (interactive image map)
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Created and Maintained by: Michael Riffle