Quantification of hierarchical substructure detected through seven major lines: mean F
. Lines from Oceania, the Americas and Biaka Pygmy exhibited strong mean FST statistics at each level of the hierarchy. The remaining lines demonstrated lower FST values but increased over the progression of the hierarchy, indicating that there were stronger population substructure signals at the finer levels of resolution beyond the initial continental population groupings. The differential termination of the main lines at various levels of resolution was due to differential conclusion of analysis for the main lines in the course of the decomposition.