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Figure 4


Fig. 4. Ttk is required for tracheal cell rearrangements and cell shape changes. (A-L) Projections of confocal sections from a time-lapse experiment, showing the development of dorsal branches (DBs). Time is indicated in the top right corner of each panel. The cells of selected DBs have been coloured to facilitate observation of cell rearrangements. In ttk mutants (D-F,J-L), paired cells remain paired and cuboidal, and do not intercalate. Notice the formation of filopodia (arrows).





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