Dissertation Research: Progeny Fitness and Pollen Tube Growth Rate in Raphanus sativus

这项建议的目的是确定不同水平的花粉供者和接受者之间的遗传联系是否会影响萝卜种群中个体在受精前和受精后的繁殖阶段。该项目分为三个目标：(1)将分析近亲交配对果实和种子发育以及近交系后代生长和繁殖的影响，分析花粉捐赠者和接受者之间共享的五种不同水平的遗传关系。(2)花粉/花柱互作也将作为近亲交配的五个水平的函数进行研究。(3)对近交效应进行统计检验，分析几个自然群体的遗传结构模式。这项研究将首次详细研究自交不亲和植物群体中近亲繁殖的影响，从而为分析已实现的交配模式和自交不亲和植物微进化的一般研究提供有价值的数据。

The aim of this proposal is to determine whether different levels of genetic relatedness between pollen donor and recipient affect pre- and postfertilization stages during reproduction in individuals from a population of radish, Raphanus sativus. The project is organized into three objectives: (1) The effect of inbreeding on fruit and seed development and the growth and reproduction of inbred progeny will be analyzed for five different levels of genetic relatedness shared between pollen donor and recipient. (2) Pollen/style interaction will also be examined as a function of five levels of inbreeding. (3) Inbreeding effects will be examined statistically to analyze patterns of genetic structure within several natural populations. This research will be the first to investigate in detail the effects of inbreeding in a self-incompatible plant population and thus will provide valuable data relative to the analysis of realized mating patterns and the general study of microevolution in self-incompatible plants.