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Fig. 3. Evolutionary conservation of the eve 2 D2 region. (A) Sequences of the eve 2 enhancer region between the Bcd2 and Kr4 sites are shown for D. melanogaster (mel), D. erecta (ere), D. yakuba (yak), D. pseudoobscura (pse) and D. picticornis (pic). Blocks of identical sequences at least three bases long are shaded in blue. (B) Sequences of similar repeats of the GTTT motif in three different eve enhancers.