Example of the graph structure. The graph structure was used to assess possible cross-hybridization and probe redundancy as well as to improve annotation of probes. a. Graph structure of probes with significant change in signal in Vvpgip1 line 37. b. Detailed view of part of the graph structure showing differentially expressed probes in Vvpgip1 line 37. c. Example of an orthologous cluster. Probes are marked as green squares, blue circles represent a unique identifier for the orthologous cluster and matching transcripts are included as unfilled triangles.