Fig. 4

Growth and phenotypic analysis of B. napus lines overexpressing BnaFAX1-1 in the plant incubator. A Relative expression levels of BnaFAX1-1 in leaves from WT and transgenic lines. BnACTIN7 was used as the internal reference. B Representative photographs of plants from WT and transgenic lines grown in the plant incubator for 32 days. C Representative photographs of the third and fourth leaves of 32-day-old plants. D Phenotypic analysis of WT and transgenic plants in the plant incubator. *P < 0.05, **P < 0.01, Student’s t test (n = 8 ± SD)