Fig. 4From: Comparative transcriptome study of switchgrass (Panicum virgatum L.) homologous autopolyploid and its parental amphidiploid responding to consistent drought stressDifferently expressed miRNAs. a Cluster analysis of 33 differently expressed miRNA. Each cell represents the expression of microRNAs at every treated time point. The expression data of microRNAs are standardized by Z-Score, ranging from − 2 to 2, and the color ranges from green to red. b Venn diagram for ploidy comparisonsBack to article page