Generic Limits in Bromeliaceae Subfamily Tillandsioideae Using cpDNA Restriction Analysis

使用 cpDNA 限制性分析确定凤梨科亚科铁兰亚科的一般限制

• 批准号: 9108268
• 负责人: Gregory Brown
• 金额: $ 20.01万
• 依托单位: University of Wyoming
• 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: 1991-09-01 至 1995-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9108268&HistoricalAwards=false
• 关键词: Generic; Limits; Bromeliaceae; Subfamily; Tillandsioideae

The Bromeliaceae (Pineapple Family) is an important component of the vascular epiphyte flora of the New World tropics and subtropics. The family, which contains an estimated 2,500 species, is generally considered to be monophyletic, and recent molecular studies indicate that subfamily Tillandsioideae (with the genus Glomeropitcairnia removed) is also monophyletic. In contrast, four of the five remaining genera within the subfamily (Tillandsia, Vriesea, Guzmania, Mezobromelia), which encompass over 800 species, represent artificial groupings based on just one or two characters. Recent morphological and preliminary chloroplast DNA (cpDNA) data suggest that the fifth genus, Catopsis, is monophyletic. The objective of this research is to construct generic level phylogenetic hypotheses for subfamily Tillandsioideae using cpDNA restriction site data obtained from a group of selected, representative species. This molecular phylogeny will be used to evaluate morphological character state changes within Tillandsioideae, as well as form the framework for future phylogenetically based generic level taxonomic revisions within the subfamily.

凤梨科（凤梨科）是菠萝科植物的重要组成部分， 新大陆热带的维管附生植物群， 亚热带 该科估计有2,500种， 一般认为是单系的， 研究表明，铁兰亚科（与属 Glomeropitcairnia删除）也是单系。 相比之下，四 在亚科内的五个剩余属中（铁兰属， Vriesea，Guzmania，Mezobromelia），包括800多个物种， 表示基于一两个字符的人工分组。 最近的形态学和初步叶绿体DNA（cpDNA）数据 建议第五属，Catopsis，是单系。 的 本研究的目的是构建语类水平 利用cpDNA研究铁兰亚科系统发育 从一组选择的， 代表性物种。 这种分子遗传学将用于 评价形态特征状态变化， Tillandsioideae，以及形成未来的框架 基于遗传学的属级分类学修订 亚科