Supplementary Figure 4: Trr-Y/F adults have extranumerary thoracic macrochaetae when grown at higher temperatures.

When grown at 29 °C, trr-Y/F flies exhibit extranumerary thoracic macrochaetae, as compared with either trr-WT or trr-C/A. Note that this phenotype is less penetrant in the wild-type trr background (right). Sixty flies were scored per genotype.