EAPSI: Using Phylogeny Reconstruction to Examine Origin and Diversification of Beardless Iris

系统发生学方法有助于理解进化关系。这项研究的目的是通过建立一个分类学修订的系统发育框架，并测试物种的分化和扩散，来促进我们对亚洲蝴蝶属系统学和生物学的理解。这项研究将集中在亚洲蝴蝶花的地理起源和进化关系上。本研究的目的是构建中国菊科的系统发育分析，并解决该系在利米尼里斯亚属中的定位问题。利用系统发育的方法，我们将研究中国科的地理起源，中国系是一种分布在亚洲的小蝴蝶科植物；中国、韩国和日本。我们建议调查哪些亚洲种应该被归入中国科；中国科物种之间的系统发育关系；以及该科在亚洲的起源、扩散和多样性。我们将把分子标记应用于系统发育关系，并用这些结果来检验关于地理分布的假说。这项工作将在韩国成均馆大学生物科学系教授兼馆长Seung-chul Kim博士的指导下进行。这项研究将集中于亚洲蝴蝶的地理起源和进化关系。我们建议调查哪些亚洲种应该包括在中国系中；中国系物种之间的系统发育关系；以及该系列在韩国的起源、扩散和多样性。将使用最大似然法和贝叶斯统计方法对核和叶绿体DNA标记进行测序，以进行系统发育重建。该奖项由东亚和太平洋夏季学院项目设立，由美国国家科学基金会和韩国国家研究基金会共同资助，资助一名美国研究生的暑期研究。

Phylogenetic methods can aid for an understanding of evolutionary relationships. The goal of this research is to advance our understanding of systematic and biology of Asian Iris by creating a phylogenetic framework for taxonomic revision, and testing species divergence and dispersal in Iris. This research will focus on geographic origins and evolutionary relationships of Asian Iris. The purpose this search is to construct a robust phylogenetic analysis of series Chinensis and to resolve the placement of this series within subgenus Liminiris. Using a phylogenetic approach, we will examine geographic origins of series Chinensis, small irises that are distributed in Asia; China, Korea, and Japan. We proposed to investigate which Asian species should be included in series Chinensis; phylogenetic relationships among series Chinensis species; and the origin, dispersal, and diversification of the series in Asia. We will apply molecular marker to phylogenetic relationships and use these results to test hypotheses about geographic distribution. The work will be carried out under the supervision of Dr. Seung-Chul Kim, Professor and Curator, Department of Biological Sciences at the Sungkyunkwan University in South Korea.This research will focus on geographic origins and evolutionary relationships of Asian Iris. We propose to investigate which Asian species should be included in series Chinensis; phylogenetic relationships among series Chinensis species; and the origin, dispersal, and diversification of the series in South Korea. Nuclear and chloroplast DNA makers will be sequenced for phylogeny reconstruction using Maximum Likelihood and Bayesian Statistical methods. The resulting phylogeny will be used as a framework for testing hypothesis on patterns of geographic diversification.This award, under the East Asia and Pacific Summer Institutes program, supports summer research by a U.S. graduate student and is jointly funded by NSF and the National Research Foundation of Korea.