Fig. 5

Identification and characterization of long noncodin RNAs (lncRNAs). A A Venn diagram of the lncRNAs identified by four different tools. B Statistics of location of the lncRNAs. C The length distribution of lncRNAs. D Hierarchical clustering and heatmap of lncRNAs based on expression level. Venn diagrams of differential lncRNAs that were up- (E) and down-regulated (F) in B73 and IL85. G GO enrichment analysis for target genes of lncRNAs that specifically up-regulaed in B73 or IL85 under cold stress, where the dot size indicates the number of genes, and the dot colour indicates the p-value of the GO term