Tracing the Origins of the Deuterostome and Protostome Animals

追踪后口动物和原口动物的起源

• 批准号: 9527973
• 负责人: James Lake
• 金额: $ 14.5万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-03-01 至 1999-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9527973&HistoricalAwards=false
• 关键词: Tracing; Origins; Deuterostome; Protostome; Animals

9527973 LAKE By far the greatest numbers of species in the world's biodiversity are members of very varied groups or lineages known collectively as "invertebrate animals." To date, our knowledge of the relationships among invertebrate phyla is based primarily on morphological features and the resolution of relationships on this basis still leaves much to be desired. This award will provide funds for DNA sequencing efforts for 35 invertebrate taxa and that information will be used to address morphological, paleontological, developmental, and biochemical changes or events that occurred during the diversification of invertebrates. Special attention will be paid to the origins of deuterostome and protostome animals and the origins of the arthropods and their hypothesized close relatives. DNA sequences will be obtained for 18S rRNA for all taxa and for a nuclear elongation factor gene for some of the taxa critical to understanding older or deeper phylogenetic relationships. This award will contribute to our currently very rudimentary understanding of an important and relatively neglected aspect of biodiversity. Knowledge of relationships among invertebrate taxa has potential applied value as many invertebrate groups include species that are of economic and medical importance. The phenomenon of bioprospecting has been revealing important natural products from invertebrates that show pharmaceutical promise from antibiotics to anesthetics.

小行星9527973 到目前为止，世界上生物多样性中数量最多的物种是统称为“无脊椎动物”的非常不同的群体或谱系的成员。“迄今为止，我们对无脊椎动物门之间关系的了解主要基于形态特征，在此基础上的关系解决方案仍有许多需要改进的地方。 该奖项将为35个无脊椎动物分类群的DNA测序工作提供资金，这些信息将用于解决无脊椎动物多样化过程中发生的形态学，古生物学，发育和生物化学变化或事件。 特别注意后口动物和原口动物的起源，以及节肢动物和它们的假定近亲的起源。 DNA序列将获得18S rRNA的所有类群和核延伸因子基因的一些类群的关键，以了解旧的或更深的系统发育关系。 这个奖项将有助于我们目前对生物多样性的一个重要和相对被忽视的方面的非常初步的理解。 无脊椎动物类群之间的关系的知识具有潜在的应用价值，因为许多无脊椎动物类群包括具有经济和医学重要性的物种。 生物勘探现象已经揭示了从无脊椎动物中提取的重要天然产物，这些产物显示出从抗生素到麻醉剂的制药前景。