Fig. 6From: Overexpression of MfPIP2-7 from Medicago falcata promotes cold tolerance and growth under NO3 − deficiency in transgenic tobacco plantsAnalysis of transcript levels of ERD10C (a), ERD10B (b), NIA1 (c), and NIA2 (d), DREB1 (e), and DREB2 (f) in transgenic tobacco plants in comparison to the wild type. The expression levels were normalized to that of actin using qRT-PCR. Means of three repeats and standard errors are presented; the same letter above the column indicates no significant difference at P < 0.05Back to article page