Figure 4.

Alignment of exons 3 and 4 and intron 3 of CG42322 in several Drosophila species. Grey corresponds to part of the exons. Blue arrows point to the approximate position where Pros28.1A and likely additional sequence at its 5′ and 3′ end have been inserted (not shown). See supplementary data file 2 for the complete alignment. D. grimshawi is not shown because it has an unusually long intron.