Shriver's consensus subpopulation tree on ten replicate ipPCA runs. Each cell contains population labels African American, African Pygmy, Asian, Caucasian, East African, Nahua, New Guinea, Puerto Rican, Quechua/Peru, South Altaian, South Indian Brahmin, South Indian Mala, Spanish, or West African. The number of individuals is presented in parentheses next to each label. The number of PCs used for clustering is indicated in parentheses in each cell. The blue cell indicates the entire dataset. Nested datasets containing unresolved structure are in green, while the terminated red cells represent resolved subpopulations.