A conclusion could be made that the alien addition chromosomes in the disomic addition line can steadily pass on to its offspring, which can be used for gene mapping.

• 表明该二体附加系的附加染色体能在杂种后代中稳定传递，不易因遗传排斥而丢失，可用来进行有关农艺性状的基因定位研究。