Phylogenetics an morphological diversification in capparaceae, cleomaceae, and brassicaceae

系统发育学：辣椒科、油莲科和十字花科的形态多样性

• 批准号: 341656-2007
• 负责人: Hall, Jocelyn
• 金额: $ 2.23万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=527411
• 关键词: Phylogenetics; morphological; diversification; capparaceae; cleomaceae

Despite our fascination with the diversity of forms observed in flowering plants, our understanding of how this variation has arisen is limited. The goal of my research is to better understand the mechanisms underlying differences in two key traits: fruit structure and floral symmetry. A group within the mustard family, called the Brassiceae, is important because it includes crop species (e.g. canola, broccoli) and because the fruits are often segmented, a trait that dramatically alters how their seeds are dispersed. The increasing importance of seed dispersal in crop plants and controlling the gene flow in genetically modified crop systems, and the increasing prevalence of introduced species in natural ecosystems, necessitate a detailed knowledge of fruit developmental genetics and evolution. Species in the caper family reveal an impressive variation in floral form, including many changes in floral symmetry. This trait has a significant impact on pollinator interactions including promoting speciation and diversification.

尽管我们着迷于在开花植物中观察到的形式的多样性，但我们对这种变异是如何产生的理解是有限的。我的研究目的是更好地理解果实结构和花朵对称性这两个关键特征存在差异的机制。芥菜科中的一类被称为油菜亚科，这一点很重要，因为它包括作物种类(如油菜、花椰菜)，还因为果实通常是分段的，这一特征极大地改变了它们种子的传播方式。种子在作物中传播和控制转基因作物系统中基因流动的重要性日益增加，以及自然生态系统中引进物种的日益普遍，需要对水果发育遗传学和进化有详细的了解。山雀科植物在花型上有令人印象深刻的变化，包括许多花对称性的变化。这一特征对传粉者的相互作用有重大影响，包括促进物种形成和多样化。