Fig. 7

Stress-responsive miRNAs are grouped in relation to its response-range to stress. a Dendrogram showing the clustering of stress responsive miRNAs in three main groups according to the analyzed stress conditions. b Principal component analysis of stress-responsive miRNAs. In (a) and (b), the statistical significance of the identified clusters was estimated by Mann-Whitney-Wilcoxon test, considering the inter- and intra-group Euclidean distances. c) Graphic representation of the direction (up- or down- regulated) of the melon miRNAs with broad, intermediate, and narrow response range to stress. The statistical significance of the differences was estimated by Mann-Whitney-Wilcoxon test, significant P-values are showed in bold (<0.05), and non-significant values in gray