Table 1 Non-tree-like behavior among ancestries.

From: Ancient Human Migration after Out-of-Africa

Excluded Ancestry

Q-residual score

Cushitic

0.0073

Berber

0.0084

Northern European

0.0095

Arabian

0.0096

Southern European

0.0098

Levantine-Caucasian

0.0100

Indian

0.0103

Kalash

0.0103

Southeast Asian

0.0104

Niger-Congo

0.0105

Nilo-Saharan

0.0106

Japanese

0.0106

Chinese

0.0106

Siberian

0.0107

Native American

0.0108

Omotic

0.0108

Melanesian

0.0110

Pygmy

0.0110

Khoisan

0.0115

  1. The Q-residual score measures deviation from tree-like behavior. The graph including all 19 ancestries had a Q-residual score of 0.0102. We excluded each ancestry one at a time and recalculated the Q-residual score. A lower score indicates that the excluded ancestry contributed more to non-tree-like behavior, as the remaining ancestries are more tree-like. Thus, Cushitic ancestry contributed the most to non-tree-like behavior.