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Fig. 3 | BMC Plant Biology

Fig. 3

From: BrrICE1.1 is associated with putrescine synthesis through regulation of the arginine decarboxylase gene in freezing tolerance of turnip (Brassica rapa var. rapa)

Fig. 3

Determination of polyamine content after freezing treatments and weighted gene coexpression network analysis (WGCNA) analysis of module eigengenes and polyamine metabolic profiles. a The contents of agmatine, putrescine, cadaverine, and spermidine under freezing treatment in turnip. Values are the mean of five biological replicates. Bars indicate SD. Different symbols indicate significant differences between treatments (P  <  0.05) according to Tukey’s test. b Clustering dendrogram of expressed genes. Gene modules were identified by dynamic hierarchical tree cut and shown in different colors. c For each module, the heatmap showed module eigengene (ME) correlations to traits. Numbers in each rectangular indicate the correlation coefficients and Student’s asymptotic P value for significant ME-trait relationships. The scale bar, bottom, indicates the range of possible correlations from positive (red, 1) to negative (blue, -1)

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