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. 2021 Jul 28;12:568995. doi: 10.3389/fpls.2021.568995

FIGURE 2.

FIGURE 2

Population structure of 260 genotypes of spring soybean (Liu et al., 2020): (A) Diagram showing the value of 260 samples based on clustering from 1 to 15; Cross validation error rate for each K-value of 1–15, X-axis is K-value 1–15, Y-axis is cross-validation errors. (B) Clustering analysis when the number of subgroups is in the range 2–15, the colors represent separate groups. (C) Three-dimensional score plot (PCI, PC2, and PC3) to discriminate between soybeans lines from three provinces of China. (D) Phylogenetic tree of 260 soybean lines. Areal represents the soybean lines from Jilin province, Area2 represents the soybean lines from Heilongjiang province, Area3 represents the soybean lines from Liaoning province.