The Origin and Diversification of Vaccinieae: Using Molecular and Morphological Data to Determine Major Clades of the Blueberry Tribe

痘苗科的起源和多样化：利用分子和形态学数据确定蓝莓部落的主要分支

• 批准号: 9903719
• 负责人: Kathleen Kron
• 金额: --
• 依托单位: Wake Forest University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-08-15 至 2003-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9903719&HistoricalAwards=false
• 关键词: Origin; Diversification; Vaccinieae; Using; Molecular

Kron and Luteyn 9903719The Vaccinieae (the blueberry tribe, in the heather and rhododendron family) are a diverse group of temperate and tropical woody plants found on all continents except Antarctica. The temperate members of this group are the familiar blueberries and bilberries. The lesser known tropical members of the Vaccinieae are extremely diverse in floral morphology and form a major component of many montane tropical forests (e.g., cloud forests). This project will address evolutionary relationships within the blueberry tribe using DNA sequence data from three regions in the chloroplast and nuclear genomes, and morphological data. The collaboration of a molecular systematist (PI-Kron) with the expert in tropical blueberry morphology and field work (coPI-Luteyn) is a powerful approach to such a large scale study and is key to the success of the project. The blueberries are an excellent model for testing the commonly held assumption that taxa that are most diverse in the tropics must have originated in the tropics. Because of the morphological diversity, large size (1000 spp.) and widespread geographic distribution of this taxon, evolutionary studies of relationships within Vaccinieae will provide an important window on the general evolutionary history of the earth. The results of this study will contribute to a broader understanding of the common historical factors that have contributed to the amazing diversity in the Neotropics. These comparisons will contribute to a more complete understanding of causes and patterns of diversification in some of the most diverse ecosystems in the world.

Kron和Luteyn 9903719 Vaccinieae(石南属和杜鹃花科的蓝莓部落)是一种温带和热带木本植物，分布在除南极洲以外的所有大陆。这一类的温带成员是我们熟悉的蓝莓和越橘。越桔亚科鲜为人知的热带成员在花卉形态上极其多样化，构成了许多山地热带森林(如云雾森林)的主要组成部分。该项目将使用叶绿体和核基因组中三个区域的DNA序列数据和形态数据来研究蓝莓部落内部的进化关系。分子系统学家(Pi-Kron)与热带蓝莓形态和野外工作专家(Copi-Luteyn)的合作是进行如此大规模研究的有力途径，也是该项目成功的关键。蓝莓是检验普遍持有的假设的一个极好的模型，该假设认为热带地区最多样化的分类群一定起源于热带。由于形态多样，体型较大(1000 spp.)随着该分类群广泛的地理分布，对Vaccinieae内部关系的进化研究将为了解地球的一般进化史提供一个重要的窗口。这项研究的结果将有助于更广泛地了解导致新热带地区惊人多样性的共同历史因素。这些比较将有助于更全面地了解世界上一些最多样化的生态系统多样化的原因和模式。