Dissertation Research: Systematic Studies of North American Callitriche (Callitrichaceae)

论文研究：北美Callitriche（Callitrichaceae）的系统研究

• 批准号: 8701285
• 负责人: Gregory Anderson
• 金额: $ 0.85万
• 依托单位: University of Connecticut
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-05-01 至 1989-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8701285&HistoricalAwards=false
• 关键词: Dissertation; Research; Systematic; Studies; North

Aquatic flowering plants are notoriously difficult to identify because their morphology varies greatly with differing water levels and other factors of the environment. Graduate student Thomas Philbrick, under the supervision of faculty advisor Dr. Gregory Anderson at the Univesity of Connecticut, is studying the effects of growth conditions on the morphology of 17 North American species of the aquatic angiosperm genus Callitriche. He is supplementing this morphological study with biochemical analyses of variation in chloroplast DNA, in order to identify reliable markers of genetic divergence among species and construct a robust taxonomy for the group. The results of his study will lead to improved classification of these plants and better understanding of the evolutionary history of divergence among the species.

水生开花植物是出了名的难以识别，因为它们的形态随着不同的水位和其他环境因素而变化很大。研究生托马斯·菲尔布里克在康涅狄格大学指导老师格雷戈里·安德森博士的指导下，正在研究生长条件对17种北美水生被子植物卡利特里奇属物种形态的影响。他正在用叶绿体DNA变异的生化分析来补充形态学研究，以便确定物种间遗传差异的可靠标记，并为该群体建立一个健全的分类。他的研究结果将有助于改进这些植物的分类，并更好地了解物种之间分歧的进化史。