Dissertation Research: Systematics and Evolution of ColumneaSection Pentadenia (Gesneriaceae)

研究生J.F.史密斯提出了一个专题修订 标题新热带植物柱花草属的分类和进化研究 五花组。 在他的主要教授的指导下 K.史密斯先生将召集南方的代表 美洲种，并描述其生殖形态， 叶绿体DNA序列和核核糖体DNA限制 模式. 分子数据将用于建立 生物物种之间的进化关系， 生殖结构将被解释为反对这一点 进化框架 这项拟议的研究将增加我们对 鲜为人知的热带植物属，并将使用最先进的 解开它们进化史的方法 通过组合 用形态学方法研究进化史的分子方法 关于功能特性的数据，该项目将阐明 适应的大问题。

Graduate student J. F. Smith proposes a monographic revision and evolutionary study of the neotropical plant genus Columnea section Pentadenia. Under the direction of his major professor K. J. Sytsma, Mr. Smith will collect representatives of the South American species and characterize their reproductive morphology, chloroplast DNA sequences, and nuclear ribosomal DNA restriction patterns. The molecular data will be used to establish the evolutionary relationships among living species, and the reproductive structures will be interpreted against this evolutionary framework. The proposed study will increase our understanding of a poorly known tropical plant genus, and will use the most advanced means for unravelling their evolutionary history. By combining molecular approaches to evolutionary history with morphological data on functional characters, the project will illuminate the broad question of adaptation.