Fig. 3From: Unravelling the genetic diversity and population structure of common walnut in the Iranian PlateauGeographical distribution of the genetic structure in 27 populations across the Iranian Plateau. Right-lower inset represents the population from Georgia. The proportion of the pie charts are based on the STRUCTURE results in Fig. 2a (K = 2). The designation of G1 and G2 corresponds to Fig. 2aBack to article page