Fig. 5

Cluster analysis of DGEs during floral induction. a Hierarchical clustering analysis of DGEs. The log₁₀ (RPKM + 1) for significantly DEGs from the three selected stages (0, 2 and 3 weeks after low temperature treatment) was used. The 2755 DEGs were classified into 8 regulation patterns. The red and blue rectangles denoted the hierarchical clustering. b The significant expression profiles and their top 5 most significantly enriched functional pathways. The log₂(ratios) for significantly DEGs from the three selected stages (0, 2 and 3 weeks after low temperature treatment) was used. The number at the bottom of a cluster box is the number of genes assigned to the profile. The number after each pathway represents the percentage of DEGs genes with annotation into this pathway