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Fig. 3. DAAM expression in the embryonic tracheal system and the DAAM
antibody. RNA in situ hybridization of DAAM (A) and
immunohistochemical staining with a polyclonal anti-DAAM serum (B)
revealed a strong expression in the developing embryonic tracheal system.
Brown staining in A and red staining in B show DAAM expression in a
stage 16 embryo. The anti-DAAM serum barely detects any DAAM protein in a
DAAMEx68 homozygous mutant embryonic trachea (C,D)
and in mitotic clones induced in DAAMEx68, w, FRT19A/w,
arm-lacZ, FRT19A; ey-flp/+ larval eye imaginal disc [E-H;
homozygous mutant clones (white arrows) lack DAAM staining]. Clones are marked
by absence of ß-gal (green). Elav (blue) is a neuronal marker. H is the
merge of E-G. Anterior is towards the left, and dorsal is upwards in all
panels.