Dissertation Research: Systematics of Calopogon and the Arethuseae (Orchidaceae)

9623476 Jansen这项奖励将提供材料和用品的资金，以及从马来西亚和西太平洋获得材料的旅行资金，以及在英国Kew Gardens的Mark Chase博士的实验室进行一些DNA测序工作。这种支持将加强道格拉斯·H·戈德曼的论文，他是德克萨斯大学奥斯汀分校罗伯特·詹森博士的研究生。学生的论文项目包括两个部分：1)北美兰花属的修订，利用分子和形态数据集，包括对物种地理范围的种群水平分析，特别是评估被认为是杂交起源的物种C.oklahomensis的状况；2)对Calopogon所属的Arethuseae部落进行分子系统发育分析，这是理解兰科植物关系的关键。该奖项将为一名研究生提供支持，该研究生将继续学习兰花植物家族中的关系。这些植物分布在世界各地，但许多植物的栖息地受到限制，受到威胁或濒临灭绝。有些作为苗圃栽培品种具有重要的经济价值，但它们的美丽和受欢迎已经威胁到其他稀有物种。支持对研究生进行现代系统生物学和种群生物学方法论方面的培训，对于保持一支能够解决日益引起全球关注的生物多样性问题的科学家队伍十分重要。

9623476 JANSEN This award will provide funds for materials and supplies as well as travel funds for obtaining material from Malaysia and the western Pacific and some DNA sequencing effort in the laboratory of Dr. Mark Chase at Kew Gardens, UK. This support will enhance the dissertation of Douglas H. Goldman who is a graduate student with Dr. Robert Jansen at University of Texas, Austin. The student's dissertation project has two elements 1) revision of the North American orchid genus Calopogon, utilizing molecular and morphological data sets and including population level analyses across the geographic range of species, especially to assess the status of the species C. oklahomensis, which is believed to be of hybrid origin and 2) molecular phylogenetic analysis of the tribe Arethuseae to which Calopogon belongs and which is a basal lineage critical to understanding relationships in the family Orchidaceae. This award will provide support for a graduate student pursuing studies of relationships in the orchid plant family. These plants are world-wide in distribution but many have restricted habitats and are threatened or endangered. Some are of major economic importance as nursery cultivars but their very beauty and popularity has threatened other rare species. Support for the training of graduate students in modern systematic and population biology methodologies is important for maintaining the workforce of scientists capable of addressing the questions and issues of biodiversity which are of increasing global concern.