Thus, the ORF25 gene of CMS cannot possess the function as it did in the maintainer line.Whether or not these changes of ORF25 gene are related to tobacco male sterility needs further research.

• 因此，烟草雄性不育系的ORF25基因不能发挥其在保持系中所发挥的作用，这是否与烟草的雄性不育性有关还有待于进一步深入研究。