Distribution of recent segmental duplications in the human genome. (A) Sequence identity. Interchromosomal (red) and intrachromomal (blue) segmental duplications in the human genome sequence (May 2004 build) were binned according to their divergence, and the total number of aligned basepairs was determined. Divergence (K) is calculated as the number of substitutions per site between the two duplication alignments. (B) Chromosomal distribution. The distribution of recent segmental duplications is depicted with the color bars representing different percent identities. The distribution within each chromosome was calculated as the proportion of pairwise alignments at each percent identity.
