The Behavior of Cytoplasmic Pollen Sterility in Populations

Publisher Website
Google Scholar
Abstract
A mathematical model has been developed for a population of plants in which pollen sterility is dependent on a cytoplasmic factor and one pair of Mendelian alleles. The following conclusions can be drawn: 1. The ratio of the two cytoplasms in the population will remain constant. 2. The relative frequencies of the two alleles in the two cytoplasms will tend to equality. 3. The plasmon-sensitive allele involved in the production of pollen-sterility will be selected against and be eliminated. 4. The equilibrium conditions are given for the case that selection against a plasmon-sensitive gene is counteracted by mutation to the plasmon-sensitive allele. 5. Female sterility induced by interactions of a cytoplasmic factor and a nuclear gene leads to selection against the cytoplasm and the plasmon-sensitive gene, and to the elimination of both. The bearing of the model on actual observations with cytoplasmic pollen sterility is discussed.

This publication has 0 references indexed in Scilit: