Supporting Future Wheat Improvement Underpinned By Novel Genetic Diversity For Root Traits

以根性状新遗传多样性为基础支持未来小麦改良

• 批准号: 2754049
• 金额: --
• 依托单位: University of Nottingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2754049
• 关键词: Supporting; Future; Wheat; Improvement; Underpinned

Wheat (Triticum aestivum) is the UK's most important crop, and ensuring its efficient production underpins food security around the world. While the wheat root system is a key component of overall plant architecture and crop performance, due to the inherent complications in studying below ground structures, relatively little is known about the genetic and gene regulatory pathways that modulate it. The aim of this PhD is to develop knowledge related to root system architectures that could be directly selected for and their effect on efficient crop performance, nutrient uptake and interaction with agricultural environment, in particular working towards a sustainable agricultural model. Recent wheat germplasm, genetic and genomic resource development (Adamski et al. 2020, eLIFE, 9:e55646), combined with advances in root phenotyping protocols (Ober, Alahmad, Cockram, et al. 2021, Theor Appl Genet, 134:1645-62), provide powerful tools with which to address fundamental and applied components of this knowledge gap. This studentship will exploit such resources to investigate, at the genetic, gene network and physiological level, the control of root system architecture traits and their impact on plant performance. Research will focus around the following hypotheses:1) Extreme wheat root phenotypes will provide entry points to understanding the genes and gene regulatory networks that control root architecture.2) Novel sources of genetic variation for root architecture will be tractable for genetic analysis using wheat germplasm that incorporates genomic regions from wheat relatives.

小麦（Triticum aestivum）是英国最重要的农作物，并确保其有效的生产为全球粮食安全的基础。虽然小麦根系是整体植物结构和作物性能的关键组成部分，但由于研究地下结构的固有并发症，对调节其调节的遗传和基因调节途径的了解相对较少。该博士的目的是开发与可以直接选择的根系体系结构有关的知识，以及它们对有效的作物绩效，养分吸收和与农业环境的互动的影响，特别是致力于可持续的农业模型。最近的小麦种质，遗传和基因组资源发展（Adamski等，2020年，Elife，9：E55646），再加上根表型方案的进步（Ober，Alahmad，Cockram，2021，2021，Theor Appl Genet，134：1645-62），可与该知识的工具相结合，并为其提供了强大的工具。该学生将利用此类资源来研究基因网络和生理水平，控制根系结构特征及其对植物性能的影响。研究将围绕以下假设进行：1）极端小麦根表型将为理解控制根结构的基因和基因调节网络提供入口点。2）使用小麦种植的遗传结构遗传变异的新型遗传变异来源，使用小麦种质分析，使用小麦种植，将麦片来自小麦亲戚的基因组区域融合。