Dissertation Research: Polyploidy and the Evolution of Duplicated Photosynthesis Genes

论文研究：多倍体和重复光合作用基因的进化

• 批准号: 0709965
• 负责人: Jeffrey Doyle
• 金额: $ 1.2万
• 依托单位: Cornell Univ - State: AWDS MADE PRIOR MAY 2010
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-06-15 至 2010-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0709965&HistoricalAwards=false
• 关键词: Dissertation; Research; Polyploidy; Evolution; Duplicated

Polyploidy (whole genome doubling) is a major force in plant evolution, but relatively little is known about the role of polyploidy in shaping physiological or developmental processes. The objective of this project is to study the effects of polyploidy on the network of functionally interrelated genes underlying photosynthesis, a key determinant of the ecological success and economic utility of plants. All species of the legume genus Glycine, including the cultivated soybean (G. max), experienced two ancient rounds of polyploidy, and some wild Glycine species underwent an additional very recent event. This research will examine how the two ancient events have shaped the structure and expression of gene families involved in photosynthesis, using the extensive genomic resources of soybean. Genomic and proteomic experiments will also be conducted on recent polyploids to study the early effects of polyploidy on photosynthesis gene networks. This project will contribute to understanding of the emergent properties of polyploidy, which has shaped the genomes of major crop species. This interdisciplinary approach seeks to bridge the gap between genomic and physiological studies by achieving an understanding of the effects of polyploidy on genes underlying an important physiological process.

多倍体（全基因组加倍）是植物进化的主要力量，但对多倍体在形成生理或发育过程中的作用知之甚少。该项目的目的是研究多倍体对光合作用相关功能基因网络的影响，光合作用是植物生态成功和经济效益的关键决定因素。大豆属的所有物种，包括栽培大豆（G. max）经历了两轮古老的多倍性，并且一些野生大豆物种经历了额外的非常近期的事件。本研究将利用大豆广泛的基因组资源，研究这两个古老事件如何塑造了参与光合作用的基因家族的结构和表达。还将对最近的多倍体进行基因组和蛋白质组实验，以研究多倍体对光合作用基因网络的早期影响。该项目将有助于理解多倍体的新特性，多倍体塑造了主要作物物种的基因组。这种跨学科的方法旨在弥合基因组和生理学研究之间的差距，通过了解多倍体对重要生理过程基因的影响。