Figure 2
From: Identification of transcriptome-wide, nut weight-associated SNPs in Castanea crenata
Genetic structures of 42 individual chestnut trees. (a) Plots of the first principle components, using 397,059 filtered SNPs. Individual accessions are shown as coloured dots that represent either large (red) or small (blue) nut-bearing populations. The percentage of variance is described in the axis. (b) Neighbour-joining phylogenetic tree of 42 chestnut accessions, based on SNPs. The subclades represent either a large (red) or small (blue) nut-bearing population, and the scale bar unit (0.1) is displayed below the tree. (c) Population structure histogram inferred using the Bayesian model-based STRUCTURE clustering method. The colour of each bar represents a specific cluster of large and small nut-bearing populations at an optimal value of K = 3.
