Figure 3
Nested insertions of retroelements in the AT BAC of Gossypium hirsutum. The outer copia is shown in gray and the inner copia in black. Four LTRs, corresponding to the two copia insertions, are shown as triangles. The three coding domains of the copias, reverse transcriptase (RT), integrase (INT), and protease (PRO), are designated by the labeled boxes within the LTRs. Surrounding the copia nest is a single POGO element that is shared by AT and DT, and which was split in two when the copias inserted.
