Term Name:	epithelial cell type specification, open tracheal system
Synonyms:	tracheal cell type specification, tracheal epithelial cell type specification
Definition:	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.
Ontology:	GO: Biological Process [GO:0035153]    QuickGO    AmiGO