MATHEMATICAL STUDY OF THE EVOLUTION OF GYNODIOECY WITH CYTOPLASMIC INHERITANCE UNDER THE EFFECT OF A NUCLEAR RESTORER GENE

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