Figure 5.—

Conserved transcription factor binding sites upstream of the E(spl) genes. Putative transcription factor binding sites identified upstream of the E(spl) bHLH, m4, and mα genes that are found to be completely conserved or partially conserved (two or fewer base substitutions) in at least nine Drosophila species are shown. Sites are color and number coded according to the list at the bottom. The spacing of the sites in the diagram reflects the general spacing in the actual sequences. Arrows depict transcription start sites. Actual sequences for all identified sites are presented in supplemental Figure S1 at http://www.genetics.org/supplemental/).