Comparison of microarray and qRT-PCR analysis of five genes. Log2 ratios of five selected genes (At3g45140, At1g72290, At4g31500, At1g47540, and At1g27130) after infestation of Rivera and Christmas Drumhead by P. rapae. On the left, the log2 ratio patterns from the microarray analysis. On the right, the log2 ratio patterns from the qRT-PCR analysis. Black, gray and white bars represent log2 ratios after 24, 48, and 72 h of P. rapae feeding, respectively. All bars contain their corresponding standard deviation.