POWRE: The Contribution of Parental Effects to Life History Evolution in Campanula americana

9752947加洛韦一个人的表型除了受到自己的影响外，还可能受到父母的基因和环境的影响。在草本植物美国风铃中，萌发的时间决定了一个个体是一年生的还是两年生的。这项拟议的研究将评估父母的遗传和环境影响对该物种萌发时间和生活史变异的潜在影响。在POWRE的这项提案中，劳拉·加洛韦将评估亲本环境对种子萌发模式的影响，方法是在受控和自然条件下，在一系列母本和父本环境(光和营养)下生长种子。她还将确定特定母体特征影响萌发模式的可能性。特别是，母体开花时间可能会影响结果物候，进而可能影响后代的萌发模式。此外，她还将在自然种群中测量发芽时间和适合度之间的关系，以评估父母的影响对个体成功的重要性。这项工作将有助于确定是否有必要跟踪种群超过一代来预测对选择的反应模式。POWRE奖允许加洛韦博士通过在一个新的模型系统(美国风铃)中探索新的问题(母体效应的进化后果)来扩大她的研究计划。这将有助于她在一个面向领域的人口生物学研究学科中确立自己的终身教职，在她所在的机构中，以前只有男性代表。

9752947 Galloway An individual's phenotype may be influenced by its parents' genes and environment, in addition to its own. In the herbaceous plant Campanula americana, timing of germination determines whether an individual will be an annual or a biennial. The proposed research will evaluate the potential for parental effects, both genetic and environmental, to influence germination time and hence life history variation in this species. In this POWRE proposal, Laura Galloway will evaluate the potential for parental environments to influence patterns of seed germination by growing seeds produced under a range of maternal and paternal environments (light and nutrient) under both controlled and natural conditions. She will also determine the potential for specific maternal characters to influence germination patterns. In particular, maternal flowering time is likely to influence fruiting phenology, and that in turn may affect patterns of offspring germination. And, she will measure the association between germination time and fitness in a natural population to evaluate the importance of parental effects for individual success. This work will help determine whether it is necessary to follow populations for more than one generation to predict patterns of response to selection. This POWRE award permits Dr. Galloway to expand her research program by exploring new questions (evolutionary consequences of maternal effects) in a new model system (Campanula americana). It will help establish her in a tenure-track position, in a discipline of field-oriented population biological research previously represented only by men at her institution.