Statistics
showed that the separation percentage of normal
endosperm seeds to opaque floury endosperm seeds of
F1 plants was 3:1 (Table 5), indicating that the opaque
floury endosperm trait in flo7 was controlled by single
recessive nuclear gene. The 46 seeds with opaque
floury endosperm from F1 plants of flo7 × Nanjing 11
were selected, and DNA of the seedlings were used for
fine mapping, and Flo7 was preliminarily located on
the long arm of chromosome 12 (Fig. 4-A). Based on