
Shared Alu polymorphisms. (A) A Venn diagram of shared novel Alu insertions among four genomes. The African (NA18507) genome shows the greatest number of individual-specific Alu integration polymorphisms when compared with the Asian (AK1 and YH) and European (NA10851) genomes. This effect holds even after correcting for differences in genome coverage. (B) The histogram shows the number of Alu insertions that are unique and shared among two or more genomes.











