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.

这项研究将使用核和线粒体rDNA序列信息来评估源自当今Oomycota各个祖先群体的生物的系统发育相关性。 这些分子用于研究关系的效用将在不同的分类水平上进行评估。 关于哪些基团相对于铬铁的祖先，将得出推论（Cavalier-Smith 1986-包括chrysophyceae，xanthophyceae，bacillophyceae等），因此应包括在修复的Oomycota中。 基于分子数据的系统发育方案将用于基于其他现有非分子特征来测试这些方案。 初步的分子分析以及基于Zoopoper多孢子的超微结构特征的分子分析已导致共同组之间的系统发育关系相同，这种方法可以提供对它们的系统发育关系的最真实的理解。 这些群体与其他原生谱系的关系将为检查和预测其生物学的各个方面提供一个关键的框架，并将在选择适当字符的套件中非常有用，以在此和相关组中进行进一步的系统发育研究。