Fig. 9From: Genome-wide investigation of WRKY gene family in pineapple: evolution and expression profiles during development and stressExpression profiles of 16 selected AcWRKY genes in response to different hormonal treatments. Data were normalized to β-actin gene and vertical bars indicate standard deviation. Asterisks indicate the corresponding gene significantly up- or down-regulated compared with the untreated control (*P < 0.05, **P < 0.01, Student’s t-test)Back to article page