Fig. 1From: Combining targeted metabolite analyses and transcriptomics to reveal the specific chemical composition and associated genes in the incompatible soybean variety PI437654 infected with soybean cyst nematode HG1.2.3.5.7Principal component analysis (PCA), partial least-squares-discriminant analysis (PLS-DA) and permutation tests of metabolite profiling data. a PCA score plots of the incompatible soybean variety PI437654 and the three compatible soybean varieties, Williams 82 (WM82), Zhonghuang 13 (ZH13) and Hefeng 47 (HF47), infected with HG1.2.3.5.7. b PLS-DA score plots based on the metabolite profiling data of the incompatible soybean variety PI437654 and the three compatible soybean varieties, WM82, ZH13 and HF47, infected with HG1.2.3.5.7. c Permutation tests of PLS-DA models. The permutation tests were carried out with 200 random permutations. Each point represents the metabolite profile of one biological replicateBack to article page