Figure 4

Alu -mediated non-homologous recombinations, parallel independent insertions and gene conversion. Estimated evolutionary time periods between the different primate speciation events are indicated in millions of years (mya) [44]. Arrows on the phylogenetic tree denote the potential time period for the parallel independent insertion of Alu Yb7AD234 in the human lineage and Alu Sc in the owl monkey lineage. The lanes are: 1, human; 2, pygmy chimpanzee; 3, common chimpanzee; 4, gorilla; 5, orangutan; 6, green monkey; 7, owl monkey; 8, double-distilled water (control); 9, 10 base pair molecular marker.