Sequence composition and organization of Maupiti. (A) Dot-plot analysis of Maupiti reveals the presence and organization of internally repeated DNAs. Arrows above each bar indicate relative orientations of each component. Solid arrows below the bars indicate the presence of inverted repeats at the ends, and large internal direct repeats. Note that most of the internal elements are oriented in the same direction. (B) The substructures of the A+T-rich, G-like, and Doc elements are shown relative to each other, and to previously sequenced elements (bottom). Blocks are numbered from left to right (relative to A). The homologies (colors) and relative orientations (arrowheads) of subrepeats within the A+T-rich elements are shown. The inverted repeats at the ends are composed of G-like block 1/A+T-rich block 1 and A+T-rich block 5/G-like block 6.