Figure 2. Phylogenetic tree for the MITE family OsP3 in rice and the corresponding MITE family in B. distachyon. All members from B. distachyon are grouped into one clade (BdP3). The rice OsP3 family are grouped into several tight clades (all except the BdP3 clade, and only OsP3-a is marked), indicating amplifications after the divergence of Oryza and Brachypodium. The close relationship of the B. distachyon clade (BdP3) and one rice clade (OsP3-a) suggests that they were originated before the divergence of the two species. The most similar pair between rice and B. distachyon is indicated by lines with arrowhead.