RPG: Molecular History of Hawaiian Geraniums

RPG：夏威夷天竺葵的分子史

• 批准号: 9407851
• 负责人: Helen Michaels
• 金额: $ 1.8万
• 依托单位: Bowling Green State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-06-01 至 1995-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9407851&HistoricalAwards=false
• 关键词: RPG; Molecular; History; Hawaiian; Geraniums

Michaels 9407851 This project investigates the six species of Geranium that are native and limited to the Hawaiian islands. These species share unique morphological features distinguishing them from the rest of the genus and exhibit an array of unusual divergent species groups. Because the group is both small and diverse, the Hawaiian geraniums are prime subjects for intensive study of island forms and the adaptive morphological changes following speciation. The study is designed to evaluate the use of sequence data from maternally inherited chloroplast genes and the internal transcribed spacer region of the biparentally inherited nuclear ribosomal genes as sources of characters for phylogenetic (genealogical) analysis. The research will contribute to expanding our limited knowledge of Hawaiian biotic history and will establish a phylogenetic context for planned future work on the genetic divergence between and within populations of the two endangered species, Geranium arboreum and G. multiflorum.

迈克尔斯9407851这个项目调查了六种原产于夏威夷群岛的老爷草。这些物种共享独特的形态特征，使它们有别于该属的其他物种，并表现出一系列不寻常的不同物种群。由于该类群既小又多样，夏威夷天竺葵属是深入研究岛屿形态和物种形成后适应性形态变化的主要对象。这项研究旨在评估母系遗传的叶绿体基因和双亲遗传的核核糖体基因的内部转录间隔区的序列数据作为系统发育(系谱)分析的特征来源的使用。这项研究将有助于扩大我们对夏威夷生物史的有限了解，并将为未来计划开展的关于两个濒危物种--老茅草和多花老茅草种群之间和种群内遗传差异的研究建立一个系统发生学背景。