Collaborative research: Branching in chloridoid grasses: phylogeny and inflorescence diversification

合作研究：氯化草的分枝：系统发育和花序多样化

• 批准号: 0920147
• 负责人: J. Travis Columbus
• 金额: --
• 依托单位: Rancho Santa Ana Botanic Garden
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0920147&HistoricalAwards=false
• 关键词: Collaborative; research; Branching; chloridoid; grasses

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).The chloridoid grasses are a large, economically and ecologically important group of approximately 1500 species in 150 genera that have been classified using the highly variable features of the inflorescence (how flowers are arranged). Despite their importance, relatively little is known about the relationships among the species or the regulation of inflorescence development, so these issues will be addressed through studies of all genera and one-third of the species. DNA sequences will be used to reconstruct the evolutionary relationships and create a new classification, and inflorescences will be studied from early in development to maturity to characterize the differences in an evolutionary context. Genes involved in inflorescence development of other species will be examined for their role in chloridoids.Chloridoid grasses are economically important because several species are grown as food crops or turf grasses for humans, and many provide livestock forage. Understanding the evolution of the group and the regulation of inflorescence development can have important implications for crop or turf improvement as others seek sources of desirable traits or increased grain yields. In addition to the principal investigators, the project involves undergraduate students at a small college, as well as graduate students and a postdoctoral scholar. The research findings will be broadly disseminated through print and online outlets.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。类氯草是一个巨大的、经济上和生态上重要的类群，有150属，约1500种，利用花序的高度变化特征（花的排列方式）进行分类。尽管它们很重要，但对物种间的关系或花序发育的调控知之甚少，因此这些问题将通过对所有属和三分之一物种的研究来解决。DNA序列将用于重建进化关系并创建新的分类，花序将从发育早期到成熟进行研究，以表征进化背景下的差异。参与其他物种花序发育的基因将被检查其在拟氯化物中的作用。类氯草在经济上很重要，因为有几种被种植为人类的粮食作物或草坪草，许多还提供牲畜饲料。了解该群体的进化和花序发育的调控对作物或草坪的改良具有重要意义，因为其他人寻求理想性状的来源或增加粮食产量。除了主要研究人员外，该项目还涉及一所小型学院的本科生、研究生和一名博士后学者。研究结果将通过印刷和网上渠道广泛传播。