Fig. 4

The phenotypes of the seeds and the seedlings of the transgenic lines overexpressing PcDWF1 and the control tobacco plants. a The seeds of the transgenic lines overexpressing PcDWF1 and the control tobacco plants. b The expression of PcDWF1 in eight transgenic tobacco lines and the control tobacco plants. c The phenotypes of the transgenic tobacco lines and the control tobacco seedlings under continuous light/dark conditions for 10 days. d The weight of the seed pods of the transgenic tobacco line 3 and the control tobacco plants. The root length (e) and the hypocotyl length (f) of the transgenic tobacco lines and the control tobacco seedlings under continuous light/dark conditions for 10 days. Data are the means ± SD of triplicate experiments. Different lowercase letters indicate significant differences according to Fisher’s LSD (P < 0.05). Asterisks (*) indicate significant differences from the control (Student’s t-test, *P < 0.05, **P < 0.01)