Fig. 1.—

Duplicated genes are more likely to be targeted by miRNAs than singletons. The proportions of duplicates and singletons among all miRNA targets based on binding site prediction data set (A) and experimental data set (B) are indicated. The proportions of all duplicates and singletons in the genome are shown in (C). Lighter and darker portions of the pie charts represent singletons and duplicates, respectively.