Fig. 5

Analysis of GmGIa in transgenic Arabidopsis. a The expression of the transgenes in transgenic Arabidopsis plants. Both GmGIa and hygromycin resistance gene (Hygro) were detected using RT-PCR. The WT and gi-2 were used as controls. b Overexpression of GmGIa in wild-type Arabidopsis. c Overexpression of GmGIa in gi-2. d Flowering time of transgenic plants. Rosette leaf number at bolting was recorded for flowering time. Difference relative to the wild-type or gi-2 was evaluated using the two-tailed student’s t-test. The * indicates at P < 0.05 level, and the ** indicate at P < 0.01 level