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

9752947 Galloway 个体的表型除了自身的基因和环境外，还可能受到其父母的基因和环境的影响。 在草本植物美洲风铃中，发芽时间决定了个体是一年生植物还是二年生植物。 拟议的研究将评估亲本效应（遗传和环境）影响发芽时间以及该物种生活史变异的可能性。 在这项 POWRE 提案中，劳拉·加洛韦 (Laura Galloway) 将通过在受控条件和自然条件下培育在一系列母本和父本环境（光照和营养）下产生的种子，评估亲本环境影响种子发芽模式的潜力。 她还将确定特定母性特征影响发芽模式的潜力。 特别是，母本开花时间可能会影响结果物候，进而可能影响后代发芽模式。 而且，她将测量自然种群中发芽时间和健康度之间的关联，以评估父母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。 该 POWRE 奖项允许加洛韦博士通过在新模型系统（美洲风铃）中探索新问题（母体影响的进化后果）来扩展她的研究计划。 这将有助于她在以实地为导向的群体生物学研究学科中获得终身职位，而该学科以前在她的机构中仅由男性代表。

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.