RUI: Molecular Systematics of the Oomycota

RUI：卵菌门的分子系统学

• 批准号: 9207984
• 负责人: Steven Lee
• 金额: $ 24.8万
• 依托单位: University of Northern Colorado
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1996-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9207984&HistoricalAwards=false
• 关键词: RUI; Molecular; Systematics; Oomycota

This study will use nuclear and mitochondrial rDNA sequence information to assess phylogenetic relatedness of organisms derived from the various ancestral groups of present day Oomycota. The utility of these molecules for studying relationships will be evaluated at different taxonomic levels. Inferences will be derived concerning which groups are monophyletic relative to ancestors of the Chromista (Cavalier- Smith 1986-includes Chrysophyceae, Xanthophyceae, Bacilliarophyceae etc.) and should, therefore, be included in a revised Oomycota. Phylogenetic schemes based on molecular data will be used to test those based on other existing non-molecular characters. Preliminary molecular analyses and those based on zoospore ultrastructural characters have resulted in the same phylogenetic relationships among the groups in common and this approach can provide the truest understanding of their phylogenetic relationships. The relationships of these groups to other protist lineages will provide a pivotal framework for examining and predicting every aspect of their biology and will be highly useful in selecting a suite of appropriate characters for further phylogenetic investigations in this and related groups.

本研究将使用核和线粒体rDNA序列 评估生物系统发育相关性的信息 从今天的各种祖先群体中衍生出来的 卵菌门 利用这些分子来研究 将在不同的分类学层次上评价相互关系。 将得出关于哪些群体是 单系相对于Chromista的祖先（骑士- Smith 1986-包括蓝藻，黄藻， （Bacilliarophyceae等）因此，应将其纳入 修订的卵菌门。 基于分子数据的系统发育方案 将用于测试那些基于其他现有的非分子 字符. 初步的分子分析和那些基于 游动孢子超微结构特征导致了相同的结果。 共同的群体之间的系统发育关系， 方法可以提供最真实的了解他们的 亲缘关系 这些群体与 其他原生生物谱系将提供一个关键框架， 检查和预测他们的生物学和意志的各个方面 在选择一组合适的字符时非常有用 为进一步系统发育研究， 组