Figure 3
From: A comparative computational analysis of nonautonomous Helitron elements between maize and rice
Estimated insertion times of rice helitrons. The histogram of rice insertion times (left), which is based on terminal branch lengths (TBLs) from the phylogeny of the 508 elements in the largest rice subfamily, suggests that most helitrons in rice do not result from recent insertion events. A clade of the phylogeny is shown (right) to illustrate the general property that most TBLs are long relative to interior branches.