Figure 3. Plot of inferred ancestry for each individual assuming four populations, as assessed by the program Structure.

The inference was done blind to actual population labels. Individuals: 1 to 20 are bonobos, 21 to 40 central chimpanzees (with individuals 24, 27 and 40 being the ones confiscated in DRC), 31 to 60 eastern chimpanzees, 61 to 64 Nigerian-Cameroonian, 65 to 78 western chimpanzees. Colors: green for bonobos; orange, blue and red for western, central, and eastern chimpanzees, respectively.