Figure 3From: Association mapping of QTLs for sclerotinia stem rot resistance in a collection of soybean plant introductions using a genotyping by sequencing (GBS) approach Principal component analysis. The PC analysis of 101 soybean lines was conducted using 2,593 SNP markers with MAF ≥ 0.3. The two-dimensional plot (PC1 vs PC2) shows that lines are assigned to two main groups according to their geographical origin. Arrows indicate the seven most resistant accessions in the whole panel.Back to article page