Fig. 1

Morphological changes during caryopses development of the notched-belly mutant with high occurrence of white-belly grains. The notched-line is visible on 5 DAA (days after anthesis), and the white-belly occurs on 20 DAA. Sampling times are 5, 10, 15, and 20 DAA, when the grains are cut into two parts (the upper and the bottom part) along the notched-line. Numbers below each grain indicate the days after anthesis