Fig. 3
From: Metabolome of flue-cured tobacco is significantly affected by the presence of leaf stem
Analysis of differential metabolite in all samples. A Principal component analysis to visualize the sample distributions, B OPLS-DA generated score plots of the differential metabolites; C The volcano plot representing differential metabolites among different samples; D the Venn diagram showing differential metabolites in different samples, E Total number of differentially accumulated metabolites in different samples. Location of cultivation (L1, L2, L3, L4, L5), Genotype (V1, V2), only leaf (L), stem plus leaf (SPL). OPLS-DA, orthogonal partial least squares discriminant analysis