DISSERTATION RESEARCH: Multi-locus molecular phylogenetics of the genus Buddleja and insights into inflorescence evolution and historical biogeography

论文研究：醉鱼属的多位点分子系统发育学以及对花序进化和历史生物地理学的见解

• 批准号: 1311111
• 负责人: Richard Olmstead
• 金额: $ 2.01万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-06-01 至 2017-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1311111&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Multi; locus; molecular

The genus Buddleja, commonly called the butterfly-bushes, is a group of flowering plants that includes approximately 110 species of shrubs and trees. They exhibit great diversity in the architecture of inflorescences, the structures in which groups of flowers are arranged, which has been hypothesized to be adaptations to different habitats and pollinators. Also, the group has a wide distribution, including areas of Africa, Asia, North America, and South America. Hypotheses concerning the geographic origin and dispersal history of the group and its relationship to past geologic and climatic events have been proposed but remain untested. The PIs will conduct a molecular phylogenetic study of the genus, using DNA sequences from multiple loci to infer evolutionary relationships among species. A novel high-throughput method of gathering genetic data will be developed. The inferred phylogenetic tree will be used in further analyses to test hypotheses about inflorescence architecture evolution and biogeographic history.Reproductive architecture, including inflorescence form, is an important component of the success and diversification of flowering plants, and this project will contribute to elucidating patterns in its evolution and adaptive significance. The study of biogeographic history is important for understanding the formation of modern floras and current distributional patterns. Buddleja includes many species of conservation, ethnobotanical, and horticultural interest. Understanding species relationships will help guide future research in this group.

醉鱼草属，通常被称为蝴蝶灌木，是一组开花植物，包括大约110种灌木和树木。 它们在花序结构上表现出很大的多样性，花序结构是花群排列的结构，这被假设为适应不同的栖息地和传粉者。 此外，该集团有一个广泛的分布，包括非洲，亚洲，北美和南美地区。 关于该群体的地理起源和传播历史及其与过去地质和气候事件的关系的假设已经提出，但尚未得到验证。 研究人员将对该属进行分子系统发育研究，利用多个位点的DNA序列推断物种之间的进化关系。 将开发一种新的高通量遗传数据收集方法。 本研究将利用系统发育树进一步验证花序结构进化和植物地理学历史的假设。生殖结构（包括花序形态）是有花植物成功和多样化的重要组成部分，本研究将有助于阐明其进化模式和适应意义。 植物区系史的研究对于了解现代植物区系的形成和现今的分布格局具有重要意义。 醉鱼草包括许多物种的保护，民族植物学，和园艺的利益。 了解物种关系将有助于指导这一群体的未来研究。