A Molecular Approach to the Phylogeny of Bryophytes Using Chloroplast DNA

利用叶绿体 DNA 进行苔藓植物系统发育的分子方法

• 批准号: 9107484
• 负责人: Brent Mishler
• 金额: $ 29.01万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-08-01 至 1995-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9107484&HistoricalAwards=false
• 关键词: Molecular; Approach; Phylogeny; Bryophytes; Using

As the most primitive living lineages of embryophytes, bryophytes are critical to an understanding of the phylogeny of the land flora. A relatively robust cladogram already exists for the plants based on morphology and chemistry. However, several aspects of their phylogenetic relationships appear unclear. The aim of this project is to obtain nuclei acid sequences from a large sample of bryophyte chloroplasts and to use these in developing and testing hypotheses about their phylogeny. Two rRNA and rbcL genes will be sequenced for a broad array of species representing most phylogenetic lineages. The PIs also intend to use these data sets and analyses to explore various attributes of the interactions of cladistic methods and types of data. Thus, a better understanding of both the bryophytes and the methods and applications of cladistics should be derived from this study.

作为胚植物最原始的生活谱系， 对了解这片土地的演化至关重要 植物群。 一个相对强大的进化树已经存在的植物 基于形态学和化学。 然而， 它们的系统发育关系似乎不清楚。 的目的 项目是从一个大样本中获得核酸序列， 并将其用于开发和测试 关于它们的系统发育的假设。 两个rRNA和rbcL基因将被 对代表大多数物种的广泛物种进行测序， 系统发育谱系 PI还打算使用这些数据集 并进行分析以探索相互作用的各种属性 支序分类方法和数据类型。 更好地理解 的方法和应用， 支序分类学应该是从这项研究中衍生出来的。