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关于水稻野败型雄性不育系花粉败育的细胞学研究国内有过不少报道。但对于雄性不育性及其恢复性的遗传研究却甚少,意见不一。一种意见认为,植物雄性不育性是受基因控制的,有核不育和核质互作两种类型。另一种意见则否定所谓不育和恢复基因的存在,认为雄性不育特性是远缘的核质矛盾不亲和所造成的。本文试图从剖析两个杂交稻组合后代育性分离的规律来探讨野败型雄性不育性及其恢复性的遗传机制。并对杂交稻F_1、F_2代几个主要经济性状的遗传变异作了分析,以期对杂交稻后代的合理利用提出一些看法。
Cytological studies on pollen abortion in male wild-type CMS in rice have been reported in China. However, the genetic research on male sterility and its restorative is very few with different opinions. One suggestion is that plant male sterility is genetically controlled and that there are two types of male sterility and nuclear cytoplasm interaction. Another opinion denied the existence of the so-called sterile and restorer genes and concluded that male sterility is caused by the incompatibility of distant nucleoplasm. This paper attempts to explore the genetic mechanism of wild-type male sterility and its restoration by analyzing the rule of fertility segregation after two combinations of rice hybrids. The genetic variations of several main economic traits in F_1 and F_2 generations of hybrid rice were analyzed in order to provide some suggestions on the rational utilization of the hybrid rice.