Collaborative Research: Phylogenetic Patterns and Processes of Diversification in Carex Subgenus Vignea (Cyperaceae)

开花植物群苔草亚属Vignea是莎草科(莎草科)的一个大而困难的类群，全世界约有300种。华盛顿州立大学的Eric H.Roalson博士和Morton植物园的Andrew L.Hipp博士提议对这一多样化的群体进行彻底的进化研究。莎草是世界各地河岸、高山/冻原和草甸生境的重要生态组成部分，但人们对此知之甚少。描述物种的差异和进化模式对于保护生物多样性和确定物种的生态功能至关重要。Roalson博士和Hipp博士将利用DNA序列和基因组结构的变异来研究该属主要谱系的多样性和进化创新。这些研究还将导致对该群体的分类修订和物种鉴定的新工具。这项建议涉及培训本科生、研究生和研究生收集和分析生物系统数据。将开发在线资源，以帮助科学和非专业工作人员识别这一群体中的物种，这将极大地促进生态和生物多样性研究。最后，我们的成果将通过科学出版物、在国家和国际会议上介绍成果以及加强合作，向更广泛的科学和普通受众群体传播。

The flowering plant group Carex subgenus Vignea is a large and difficult group of sedges (Cyperaceae), including approximately 300 species worldwide. Dr. Eric H. Roalson (Washington State University) and Dr. Andrew L. Hipp (The Morton Arboretum) propose to conduct a thorough evolutionary study of this diverse group. Sedges are critical but poorly understood ecological components of riparian, alpine/tundra, and meadow habitats worldwide. Characterizing species differences and evolutionary patterns is critical to conserving biodiversity and defining the ecological function of the species. Drs. Roalson and Hipp will use variation in DNA sequences and genome structure to study the diversification of major lineages and evolutionary innovations in the genus. These studies will also lead to a taxonomic revision of the group and new tools for species identification.This proposal involves training undergraduate, graduate, and postgraduate researchers in gathering and analyzing biosystematic data. Online resources will be developed to aid scientific and lay workers in identifying species in this group, which will greatly facilitate ecological and biodiversity studies. Finally, our results will be disseminated to the wider scientific and general audience communities through scientific publication, presentation of results at national and international meetings, and enhanced collaborations.