杉木雄性不育性遗传机理初步分析*

对杉木雄性不育原株混合授粉子代的开花情况作了观测与分析，初步认为杉木雄性不育性属核质基因作用型，即雄性不育株的细胞核有5对控制育性的隐性纯合基因，细胞质有一种控制不育性的基因，构成雄性不育基因型S (ms1 ms1 ms2 ms2 ms3 ms3 ms4 ms4 ms5 ms5)。

Preliminary Inheritance Analysis to Male Sterility of Chinese Fir.

On the basis of investigating and analysing the F1 flowering conditions of male sterility original plant, the authors preliminarily proved that the male sterility of Cunninghamia lanceolata belongs to the type of nucleo-cytoplasmic interaction, that is, the genotype S (sm1 ms1 ms2 ms2 ms3 ms3 ms4 ms4 ms5 ms5) of male sterile plant is constitured by five couples of pure gene controled fertility in cell nucleus and by a kind of gene controled sterility in cytoplasm.