Overexpression of <i>GmFT2a</i> and <i>GmFT5a</i> causes precocious flowering in the soybean cultivar Williams 82.

<p>(A) The close shot of the transgenic plant in (B) shows the precocious flowers at the axils of the trifoliate leaves. (B) A transgenic <i>GmFT2a</i> plant showing precocious flowering at the axils of the trifoliate leaves. (C) A wild-type Williams 82 plant. (D) The close shot of the wild type Williams 82 plant in (C) does not show flowers at the axils of the trifoliate leaves. (E) The close shot of the transgenic plant in (F) shows the precocious flowers at the axils of the trifoliate leaves (F) A transgenic <i>GmFT5a</i> plant showing precocious flowering at the axils of the trifoliate leaves. (G) A wild-type Williams 82 plant. (H) The close shot of the wild-type Williams 82 plant in (G) does not show flowers at the axils of the trifoliate leaves. (I) Days to flowering from the emergence of the transgenic plants and wild-type plants. Averages and standard errors are calculated from four T2 plants for each construct and 5 Williams 82 plants. Double asterisks indicate significant differences from the corresponding wild-type Williams 82 at <i>P</i><0.01.