Figure 1

(A) Two-dimensional cluster analysis of soft tissue sarcomas (horizontal) and 833 genes (vertical). Each column corresponds to a tumour, and each row corresponds to a gene. Red indicates overexpression relative to the median expression of all the samples, while green indicates underexpression. Grey indicates missing or excluded data. The dendrogram at the top (tumour clustering) shows the degree of similarity of expression pattern between the tumours, and the dendrogram on the side (gene clustering) shows the degree of similarity of expression pattern between the genes across the tumour samples. The shorter the branches, the more similar are the two joined tumours or genes (B) Magnified tumour dendrogram showing the type of tumour. Abbreviations: MFH, malignant fibrous histiocytoma; Leio, leiomyosarcoma; Synom, monophasic synovial sarcoma; Synob, biphasic synovial sarcoma.