Fig. 1

The number of times a T. gelada-ascertained Alu insertion polymorphism was predicted to be shared in a Papio species when shared in any of 2 to 11 of the 12 Papio individuals. Vertical bars are the average of the two individuals of a given species +/− the standard deviation (error bars). No Papio individuals are preferentially excluded from having shared insertions with T. gelada in any category. In bin two, P. hamadryas has significantly more shared insertions than P. anubis, P. papio, and P. cynocephalus (+: P ≤ 0.05). In bin six, P. cynocephalus has significantly more shared insertions than the three northern species, P. anubis, P. hamadryas and P. papio (+: P ≤ 0.05). Across bins 2 to 10 shared insertions are predicted in P. kindae significantly more often than all other five Papio species (*) or all except P. ursinus (#) (P ≤ 0.05)