Isolation, Expression, and Promoter Analysis of GbWRKY2: A Novel Transcription Factor Gene from Ginkgo biloba

Figure 2

Relative expression levels of GbWRKY2, GbWRKY16, and GbWRKY21 under salinity (a), cold (b), and heat (c) treatments. Relative expression of GbWRKY2, GbWRKY16, and GbWRKY21 at various hours after treatment under salinity, cold, and heat treatments with GbGAPDH gene as internal reference gene. Each sample was individually assayed in triplicate. Values shown represent the mean reading from three treated samples and the error bars indicated the standard errors of the mean.

(a)

(b)

(c)