epithelial cell type specification, open tracheal system
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.
GO:0001708
cell fate specification
is_a
GO:0007424
open tracheal system development
part_of
tracheal cell type specification
broad
tracheal epithelial cell type specification
exact