Fig. 3From: Transcriptome profilings of two tall fescue (Festuca arundinacea) cultivars in response to lead (Pb) stressHierarchical clustering analysis of Pb-induced changes in gene expression in two tall fescue cultivars under different conditions. Red and green colors in the heat-maps represented up-regulated and down-regulated genes, respectively; while black color represented those genes showing no changes. Scale bar denoted the value of fold changeBack to article page