A 1119 bp cDNA fragment homologous to Rht-Dla was obtained by RT-PCR, which contains a 3-base deletion (GGC) from +1521-+1523 within the sequence of Rht-Dla, resulting in the loss of an amino acid residue G.

• 该片段缺失了Rht-D1a序列申位于1521-1523bp处的三个碱基GGC，其编码的蛋白质缺失一个甘氨酸(G)。