Figure 4
From: Unweaving the population structure and genetic diversity of Canadian shrub willow
Redundancy analysis (RDA) ordination plots showing the relationship between population structure and environmental variables at the sites of origin along (A) RDA axes 1 and 2 (explaining 77.8% of the total variation), and (B) axes 1 and 3 (explaining 69.6% of the total variation). The dark grey cluster at the centre of each plot represents the 26,016 polymorphisms, while each dot represents a genotype (324 in total), coloured by geographic cluster as shown in the legend. Blue arrows represent five environmental variables: mean annual precipitation (MAP), frost-free days (FFD), growing degree days (GDD), mean summer temperature (MST), elevation (ELEV).
