PYI: Processes and Consequences of Natural Selection in Plants

野生植物物种自然选择的过程和结果将在三个具体和互补的研究项目中进行。首先，我们将研究东塞拉山脉几种共生野生植物不同种群内和种群间生活史和生殖性状变异的原因和进化意义。另一个项目将继续正在进行的关于野生萝卜遗传参数估计(遗传力和遗传相关性)的稳定性的实验研究，其中将操纵生长条件，以评估在不同环境条件下的进化速度和方向。第三个项目将涉及确定种子传播和传播后事件的相对重要性，以此作为秘鲁热带雨林中经济重要树木物种分布的决定因素。

The process and consequences of natural selection in wild plant species will be pursued in three specific and complementary research projects. In the first, the causes and evolutionary significance of variation in life history and reproductive traits within and among different populations of several sympatric wild plant species in the eastern Sierra Mountains will be investigated. Another project will continue ongoing experimental studies of the constancy of genetic parameter estimates (heritability and genetic correlation) in wild radish in which growing conditions will be manipulated to evaluate the rate and direction of evolution under diverse environmental conditions. The third project will involve work to establish the relative importance of seed dispersal and post-dispersal events as determinants of the species distributions of economically important trees in a Peruvian rainforest.