Fig. 4From: Molecular evidences for population differentiation and the migration from south to north of Puccinia triticina in eastern ChinaRelative migration network of 11 populations reflecting the direction of gene flow in eastern China. a Abridged general view on the map. b Relative migration network with filter threshold = 0.1. The arrows show the direction of gene flow between pairwise populations, and the shades of color correspond to the values of relative gene flowBack to article page