With the near isogenic lines (NILs) of the mutant, the effection of the dwarf mutant were researched, the reduction of plant height in the presence of dwarfing gene is mainly expressed through the shortening on the lengths of three upper internodes.

• 通过近等基因系分析，发现突变体的株高构成的节间数目未变，植株矮化源于节间长的缩短，并且是上部3个节间长度的缩短显著，而基部节间的长度变化不大。