Differences in strength of selective pressure.

The left hand side of the table (below the diagonal) indicates sites found to differ in strength of selective pressure across the whole tree. The right hand side of the table (above the diagonal) indicates sites found to differ in strength of selective pressure only at internal branches. Analyses compared populations two by two and a level of significance α≤0.005 was necessary for significance. Ethnicities are denoted by two letter codes: Aboriginal (Ab), African-Caribbean (AC), Asian (As), Caucasian (Ca), and Latin-American (LA).