Figure 7
Correlation of spacer interval lengths separating CNCSs between D. melanogaster and D. pseudoobscura. Each point represents the log10-transformed lengths for a homologous pair of spacer intervals. Spacer intervals separating a CNCS and a conserved coding segment, or between two conserved coding segments were omitted from this analysis. The solid line represents perfect spacer interval length conservation; the dashed lines represent order of magnitude size changes in spacer interval length between these two species. The correlation coefficient for homologous spacer interval lengths is r = 0.85 (p < 0.01).