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

水生开花植物是出了名的难以识别 因为它们的形态随着水的不同而变化很大， 环境的水平和其他因素。研究生 托马斯菲尔布里克，在导师博士的监督下。 康涅狄格大学的格雷戈里安德森正在研究 生长条件对17北 水生被子植物水马齿属的美洲种。他 在形态学研究的基础上， 分析叶绿体DNA的变异，以确定 物种间遗传差异的可靠标记， 为这个群体建立一个强大的分类系统。 他的研究结果 这项研究将有助于改进这些植物的分类， 更好地理解分歧的进化历史 在物种之间。

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.