Fig. 1.

Examples of cDNA macroarray hybridization of uppermost leaves and perianth transcripts. a, b The same cDNA macroarray probed with [³²P]-labeled probes made from the total RNA from the uppermost leaves and the perianth, respectively. Negative controls included distilled water (20–23 of B, D, F, H, J, L, N, P), PCR reaction solution (B24, D24, F24, H24, J24, L24, N24, P24), and SARS virus genes (A12, C12, E12, G12, I12, K12, M12, O12) on the two membranes. c, d Another cDNA macroarray probed with [³²P]-labeled probes made from the total RNA of the uppermost leaves and perianth, respectively