Fig. 1.

Analysis of sugar contents in seeds of control (C) and YK1 (L-1 and L-2) plants. Starch purified from seeds was dissolved in 10 % (v/v) ethanol and 400 mm NaOH. The total sugar concentration in the solution was measured by the phenol sulfate method and the amylose content was analysed using an iodine colorimetric procedure. Total sugars and starch contents are expressed relative to the weight of seeds. Amylose contents represent the absorbance value at 620 nm. Data are the mean ± s.e. of three independent experiments.