Fig. 1

F1 (DJY1/Dom-sufid) exhibits pollen and spikelet sterility. Pollen fertility of DJY1, Dom-sufid and F1 plants was determined based on the average value of five independent florets from DJY1, Dom-sufid and F1 plants. Data are shown as means ± SD (n = 5). Spikelet fertility of DJY1, Dom-sufid and F1 plants was determined based on the average value of five independent panicles from DJY1, Dom-sufid and F1 plants. Data are shown as mean ± SD (n = 5).