Fig. 2. Expression patterns of transcripts enriched in the body wall sample. The expression patterns of the transcripts are shown in the overall rank order according to fold change with the most highly enriched shown first (Table 1). (A) tailup (tup) is expressed in cells of the dorsal posterior epithelium. (B) CG11100 is expressed in the myoblasts. (C) CG15064 is expressed in the myoblasts. (D) CG15353 is expressed in tracheal cells. (E) CG6921 is highly expressed at the proximal tip of the disc and weakly in tracheal cells. (F) BM-40/SPARC is expressed in the myoblasts. (G) Obp56a/CG11797 is expressed in stalk cells at the proximal tip of the disc. (H) zinc finger homology 1 (zfh1) is expressed in the myoblasts. (I) viking (vkg) is expressed in myoblasts and blood cells (arrowheads, one group of cells is out of the plane of focus). (J) Elongation factor 1 alpha100E (Ef1 alpha) is expressed in the myoblasts. (K) Obp99a/CG18111 is expressed in the epithelium in cells of the presumptive scutellum. (L) CG10126 is expressed in stalk cells at the proximal tip of the disc. (M) CG9338 is expressed in tracheal cells. (N) Cg25C is expressed in myoblasts and blood cells (arrowhead). (O) Actin 57B (Act57B) is expressed in myoblasts. (P) CG5397 is expressed in tracheal cells and blood cells (arrowhead). (Q) Imaginal disc growth factor 4 (Idgf4) is expressed in the dorsal peripodial membrane. (R) CG4386 is expressed in the dorsal branch of the tracheal system. (S) CG3244 is expressed in two patches of cells in the prescutum (the smaller cluster is indicated with an arrowhead). (T) CG2663 is expressed in the trachea. (U) CG10275 is expressed in the myoblasts, hinge columnar epithelium (white arrowhead), and peripodial membrane (black arrowhead). (V) CG8689 is expressed in the myoblasts. (W) thrombospondin/CG11326 (tsp) is expressed in the dorsal posterior body-wall region and the anterior ventral wing hinge. (X) Glutamine synthetase (GS2) is expressed in tracheal cells. (Y) Glucose dehydrogenase (Gld) is expressed in the posterior dorsal epithelium in cells of the presumptive postnotum and a line of cells in the hinge region (arrowhead).

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