Figure 5
From: Male reproductive development: gene expression profiling of maize anther and pollen ontogeny
Heatmap of relative expression values for genes similar to zinc finger proteins. Genes are sorted by the cluster generated by k-means clustering (k = 4) then the relative expression values for each stage. Cluster 1 has mostly constitutive genes, cluster 2 is constitutive except for MP, cluster 3 has genes on in all stages except BM and MP, and cluster 4 has genes that increase in the last two stages.