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. 2002 May 1;16(9):1150–1162. doi: 10.1101/gad.219302

Figure 2.

Figure 2

Formation of anterior and posterior sternopleural macrochaetes (SP1 and SP3) in T3 following timed induction of Ubx null clones and Ubx null clone induction targeted to the sternopleural proneural cluster. (A) Summary table. (B) Graph showing the frequency of T2 and T3 anterior and posterior sternopleural bristles as a function of the time of Ubx null clone induction. (C) Lateral thorax of a wild-type fly. Sternopleural bristles are found exclusively on T2 (SP1 anterior and SP3 posterior sternopleural macrochaete; the arrow points to the row of microchaetes). (D) Fly with Sb+-marked Ubx null clones induced with a heatshock 28 h BPF. Ubx null clones induced at this time give rise to sternopleural macrochaetes (triangle) and microchaetes (arrows) on T3; corresponding bristles on T2 are marked in the same way. (E) Fly with Sb+-marked Ubx null clones induced with the scabrous-Gal4 line. sca-Gal4 is transiently expressed in the T3 sternopleural proneural cluster when the cluster is first formed on T2 and T3. Ubx null clones generated at this time give rise to sternopleural macrochaetes on T3 (triangle in E).