Figure 6.

Distance dependent conservation of overlapping gene pairs. Each bar represents the percentage of gene pairs in C. elegans that have orthologous gene pairs in C. briggsae. (COGP) Convergent overlapping gene pairs; (0–100) adjacent gene pairs in which two genes within a pair are separated by 0–100 bp genomic sequences; similarly, (100–500), (500–1000), (1000–5000), adjacent gene pairs in which two genes within a pair are separated by 100–500, 500–1000, 1000–5000, 5000–10,000, and 10,000–50,000-bp genomic sequences, respectively.