REVSYS: Classification, Phylogeny, and Biogeography of Corydalis (Fumariaceae)

中国-喜马拉雅山区是热带以北罕见的生物多样性“热点”。关于它在北半球植物多样性格局的地理演化中的重要性，人们知之甚少。这项研究将对其植物区系的一个重要成分进行综合修订：延胡索属(Fumariaceae)，这是一个物种丰富的草本开花植物群，由大黄蜂授粉，其中许多植物最近才被描述，更多的肯定有待发现。形态和分子数据，结合传统分类学和现代系统发育方法，将被用来对这些物种的多样化速度和历史地理做出稳定的分类和新的推断。生物多样性热点是物种丰富度和特有度高的地区，特别是生态退化的风险，迫切需要对其标志性元素进行系统研究。只要例外证明了这一规律，对延胡索这种在热带以外地区多样化到如此程度的谱系的分析，将增强我们对全球物种多样性纬度梯度的理解。该项目的成果将通过各种媒体(印刷、互联网、口头演示、标本)广泛传播给广泛的目标受众，有利于科学教育、保护和生物多样性研究。

DEB 0614108 REVSYS: Classification, phylogeny, and biogeography of Corydalis (Fumariaceae)Richard Ree AbstractThe mountainous Sino-Himalayan region is a biodiversity "hotspot" that is unusual in lying north of the tropical zone. It is poorly understood relative to its importance in the geographic evolution of plant diversity patterns in the Northern Hemisphere. This research will produce a synthetic revision of an important element of its flora: Corydalis (Fumariaceae), a species-rich, bumblebee-pollinated group of herbaceous flowering plants, of which many have only recently been described and more certainly await discovery. Morphological and molecular data, combined with traditional taxonomic and modern phylogenetic methods, will be used to produce a stable classification and new inferences about the tempo of diversification and historical geography of these species.Biodiversity hotspots are regions of high species richness and endemism that are at particular risk of ecological degradation, and systematic studies of their signature elements are urgently needed. Insofar as exceptions prove the rule, analysis of such a lineage as Corydalis, that has diversified to such an extent outside of the tropics, will enhance our understanding of the latitudinal gradient in global species diversity. The results of this project will be widely disseminated through various media (print, Internet, oral presentations, specimens) to a wide range of target audiences, benefiting science education, conservation, and biodiversity research.