The expression during FB development of the 67 genes, related to PCD, found in the T. melanosporum genome was preliminarily investigated by DNA microarrays (Table S2, Figure S1 and Fig. 1). Fourteen PCD-related genes, on the base of the highest identities to the homologs of other species, were chosen from the 67 PCD-related genes found and their expression tested too by qPCR to strengthen the microarrays data.