A study is described of the influence of the introduction of a dominant nuclear restorer gene into a cytoplasmic gynodioecious plant population. This study includes the consideration of separate effects on the relative female fertility of nuclear, cytoplasmic and sex (phenotypic) factors. Under these assumptions, the introduction of a dominant nuclear restorer gene into a cytoplasmic gynodioecious population can lead to several different situations: persistence of cytoplasmic gynodioecy, appearance of a nuclear-cytoplasmic gynodioecy, appearance of a nuclear gynodioecy or complete restoration of male fertility. The development of stable nuclear-cytoplasmic gynodioecy in a mathematical model is new and is possible because of the consideration of the separate relative female fertilities. The possibility of a transformation of cytoplasmic gynodioecy into a nuclear one has never been obtained before. It could constitute a route for the appearance of this latter kind of gynodioecy in plant populations. Finally, the possibilities of evolution of gynodioecy from one kind to the other, and towards dioecy, are discussed, as are some theoretical schemes that seem to correspond to observed actual situations.

译文

:一项研究描述了将显性核恢复基因导入细胞质雌雄异体植物种群的影响。这项研究包括对核,细胞质和性别(表型)因素对女性相对生育力的单独影响的考虑。在这些假设下,将显性核恢复基因导入细胞质雌雄异体种群可导致几种不同情况:细胞质雌雄同体的持续存在,核质雌雄同体的出现,核雌雄同体的出现或雄性生育力的完全恢复。在数学模型中开发稳定的核胞质生殖器是新的,并且由于考虑到单独的相对雌性受精而可能发展。以前从未获得过将细胞质雌雄激素转换成核的可能性。它可能构成在植物种群中出现这种后一种雌雄同体的途径。最后,讨论了雌雄同体从一种进化到另一种雌雄同体的可能性,以及一些似乎与观察到的实际情况相对应的理论方案。

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