Figure 2.

Hierarchical clustering analysis of differentially expressed transcripts. A set of 254 differentially expressed TCs (R >12) and seven libraries were clustered as described in “Materials and Methods.” The frequencies of a given TC from each library are indicated by increasing intensities of red. A frequency of zero is denoted with black. Bootstrapping (1,000 replicates) was used to determine the level of support for each branch. Black branches are 100% supported and yellow branches have 60% to 70% support. The libraries are: dormant tuber (1), sprouting eye II (2), microtuber (3), stolon (4), healthy leaf (5), late-blight pathogen-challenged compatible leaf library (6), and late-blight pathogen-challenged incompatible leaf library (7).