Mosaic repeat organization of BAC from human Chromosome Y. For purposes of illustration, only sufficiently long and very conservative repeats are shown. (A) Partitioning of BAC into 15 segments (numbers shown underneath) with approximate lengths of the segments shown on top. Each dashed black line represents a unique region. Each color represents a different repeat region, and occurs multiple times. (B) Repeat pairs constructed by REPuter are just the numeric ranges shown on the first line. These correspond to our division into sub-repeats, shown as colored segments on the second line, but REPuter does not identify the four sub-repeats. (C) Repeat multigraph. The edges with labels 1, 2,..., 15 form a path through this graph corresponding to the sequence in A. (D) Repeat graph, with repeated regions collapsed together. The repeat graph reveals the presence of four sub-repeats in this BAC as edges with multiplicity >1.
