Fig. 1

Clustering of gene expression data for each analyzed plant organ. Gene expression levels in different organs were analyzed by real-time PCR. Genes and plant organs were ordered using a clustering program (see “Materials and methods”) that grouped those with similar expression patterns (I–VI and A–E, respectively). Each gene is represented by a single row, and each plant organ is represented by a single column. Sample labels presented in black and blue text represent 4- and 6-week-old plants, respectively. Green and red correspond to high and low expression levels, respectively