Figure 3.

Relationships among the five Arabidopsis accessions based on their expression patterns in different organs at various developmental stages. The normalized expression values, obtained by dividing the mRNA expression indices of each organ of one accession by the intensity indices in genomic DNA hybridization for that particular accession, were log2-transformed and subjected to cluster analysis. The yellow vertical lines separate the whole cluster into three subclusters, the root cluster, the vegetative leaf cluster, and the reproductive organ cluster.

Chen et al. Genome Biology 2005 6:R32   doi:10.1186/gb-2005-6-4-r32
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