关键词: 雄性不育化, 细胞质遗传, 不育化制种, DNA甲基化, 杂种优势

Abstract: This paper summarized the type and genetic characteristics of male sterility. The mechanism of male sterility is involved in cytoplasmic heredity. It has been initially proved that atp6-c and aptA are the cytoplasmic genes of maize sterile line C group and namie male sterile line, respectively. Male sterility hybrids are extensively applied in corp production, shuch as maize, rice and vegetables. Despite some theories were proposed, such as inbreeding theory, DNA methlation and genetics of rice cytoplasm male sterile line, the basic theories of male sterile breeding requests further study. This paper suggested to gradually resolve the difficulties of crop male sterile hybridization breeding in wheat, buckwheat and navy beans.

Key words: male sterility, cytoplasm inheritance, hybridization hybrid of male slerile line, DNA methylation, herterosis