Fig. 4From: Genome-wide association study on resistance of cultivated soybean to Fusarium oxysporum root rot in Northeast ChinaPopulation structure analysis of 350 soybean germplasm accessions. A Mean LnP(k) and Delta k values for k ranging from 1 to 10. B Two-dimensional PCA scatter plot, with red dots representing subgroup 1 and blue dots representing subgroup 2. C Combined map of population structure and neighbor-joining tree for 350 SGAs, displaying the percentage of individuals in each segment. Note: Grouped by population structureBack to article page