Additional file 3: of Genome-wide association multi-locus and multi-variate linear mixed models reveal two linked loci with major effects on partial resistance of apricot to bacterial canker

Population Structure (Q) of the apricot core-collection based on data of 21,942 independent SNPs. Genotypic data pruned in order to keep markers with pairwise r2 values < 0.2. (A) Cross-validation estimation from k = 2 to k = 10 groups. Calculations performed using Admixture program [45]. (B) Barplot of Principal Component Analysis (PCA) eigenvalues from PC1 to PC73. The three first components explain 35.23% of the total variability. (C) Distribution of the ancestral fractions for each accession according to a structure divided into 3 groups: Central and Eastern Asia (yellow), Continental Europe (orange), Irano-Caucasian and Mediterranean Basin area (red). (PDF 169 kb