Gene expression profile in rice roots in response to the blast fungus, Magnaporthe oryzae. Two isogenic rice cultivar Nipponbare, (+Pia) and (-Pia), were inoculated with strains of M. oryzae harboring AVR-Pia (Inoculation methods). The roots of rice seedlings were inoculated with the conidial suspension of M. oryzae and harvested at 1, 2, 3, and 5 days post inoculation (dpi) (Inoculation methods). A total of 54 samples in three replicates were used for hybridization using the Agilent one-color (Cy3) microarray-based gene analysis system. The expression profile for each gene is shown as raw data representing Cy3 signal intensity and normalized data (log2) (Expression profile format). Search options include keyword search for individual RAP locus ID, gene name and accession number, or chromosome search to get a list of all genes for each chromosome.