Regulation of Dormancy in Wild Oat Seed

9728007种子休眠代表了几乎所有植物生活史中发育受阻的一个明显的生理阶段。休眠的种子在最佳条件下萌发时不会生长，除非它们暴露在特定的环境条件下一段时间。种子休眠是非驯化植物对环境的一种深刻适应，植物在自然和农业生态系统中的生存在很大程度上依赖于这一特性。这项研究旨在确定影响谷类种子休眠和萌发的遗传因素，如野燕麦和水稻。在这项研究过程中，将鉴定不同程度休眠的水稻种质，并与产生的群体进行异花授粉以进行遗传分析。将开发休眠的遗传模型，并确定调节休眠的基因的分子标记。遗传模型将作为一个框架，就基因和环境因素如何影响种子萌发提出更深入的问题。我们最初的分子标记将是克隆控制油脂中萌发和休眠的基因的重要工具。克隆基因对于了解种子休眠和萌发的基本原理是必要的。

9728007 Foley Seed dormancy represents a distinct physiological stage of arrested development in the life cycle of almost all plants. Dormant seeds will not grow when germinated under optimum conditions unless they have been exposed for a period of time to certain environmental conditions. Seed dormancy is a profound adaptation of nondomesticated plants to their environment and plant survival in natural and agroecosystems depends heavily upon this trait. This research is aimed at identifying genetic factors that influence dormancy and germination of cereal grain seeds such as wild oat and rice. In the course of this research, rice germplasm with varying degrees of dormancy will be identified and cross-pollinated to produced populations for genetic analyses. A genetic model for dormancy will be developed and molecular markers for genes regulating dormancy identified. The genetic model will serve as a framework to ask more in-depth questions about how genes and environmental factors influence seed germination. Our initial molecular markers will be important tools in cloning genes that control germination and dormancy in greases. Cloning genes will be necessary to understand the fundamentals of seed dormancy and germination.