Capturing novel quality and soil health traits for sustainable barley production

捕捉新的质量和土壤健康特征以实现可持续大麦生产

• 批准号: 2105273
• 金额: --
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2018
• 资助国家: 英国
• 起止时间: 2018 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2105273
• 关键词: Capturing; novel; quality; soil; health

Understanding how the environment affects gene expression during plant development is a key challenge in crop improvement not just to maintain yields in changing climates and reductions in chemical interventions, but also for selecting traits such as nutritional value and malting quality. Barley is an ideal model cereal for translation of basic research through the supply chain to the end user. It is the fourth ranked cereal crop produced in the world and has a good level of adaptability to cold, drought or poor soils, and tolerates difficult growing conditions. Barley provides essential protein in many parts of the world and is a major component of animal feed as well as providing £20 billion to the UK economy through alcohol production. Breeders work with high yielding, elite varieties from a narrow gene pool for commercial development which display reduced genetic variation compared to the wider species genepool, including heritage, land race and crop wild relatives. This decline in genetic variation therefore reduces the number of allelic variants available for breeding new varieties. As well as this, selection for nutritional enhancement and malting quality as added value traits has lagged-behind selection for agronomic performance under high chemical intervention. This area needs to be developed to ensure the secure supply of barley for the food and drink industry.PROJECT1. Can new metabolomics techniques be used to identify compounds that relate to malting quality and differentiate between heritage varieties? This industrial CASE project will focus on using new metabolomics methodology at Liverpool GeneMill to identify compounds responsible for different post-malting flavours, and that are required for a positive flavour profile, such as soluble sugars and free amino acids that react during the kilning process. The project will also look at the variation in nutritional quality such as Beta-glucan and gluten content.2. Genome wide association analysis (GWAS) to identify loci linked to added value traits and agronomic importance in barley breeding.We will collate the existing trait data obtained through the BBSRC Partnering Award and new data from New Heritage Barley and combine with the metabolomics analysis. We will also have field trial plots at Ness Botanic Gardens to explore the impact of growth in acidic soil conditions. We will use the line means as input for GWAS analyses with the SNP genotype data previously collected. Loci linked to phenotypic variation will be used to select appropriate parents for breeding.

了解环境在植物发育过程中如何影响基因表达是作物改善的关键挑战，而不仅仅是在不断变化的气候和减少化学干预措施的情况下保持产量，还用于选择诸如营养价值和麦芽麦质量之类的特征。大麦是通过供应链向最终用户翻译基础研究的理想型号谷物。这是世界上第四种谷物作物，对寒冷，干旱或土壤贫困的适应性很好，可以容忍困难的生长条件。大麦在世界许多地方提供必不可少的蛋白质，是动物饲料的主要组成部分，并通过酒精生产为英国经济提供200亿英镑。与更广泛的物种Genepool相比，育种者从狭窄的基因库中的高产，精英变化，这些变化显示出遗传变异的降低，包括遗产，陆地种族和作物野生亲戚。因此，遗传变异的这种下降减少了可用于繁殖新变异的等位基因变异的数量。除此之外，在高化学干预下，选择营养增强和麦芽质量作为增加的价值特征，以滞后于农艺性能。需要开发该区域，以确保大麦为食品和饮料行业提供安全供应。可以使用新的代谢组学技术来识别与磨损质量相关并区分遗产变化的化合物？这个工业案例项目将重点介绍利物浦基因米尔（Liverpool Genemill）的新代谢组学方法，以识别负责不同后培养口味的化合物，并且是阳性风味特征所需的，例如固体糖和在杀戮过程中反应的游离氨基酸。该项目还将研究营养质量的变化，例如β-葡聚糖和麸质含量2。基因组广泛的关联分析（GWAS），以确定与大麦育种中增加的价值特征和农艺重要性相关的环境。我们将合作通过BBSRC合作奖项获得的现有特征数据以及来自New Heritage Barley的新数据并与代谢组学分析结合。我们还将在NESS植物园进行现场试验图，以探索酸性土壤条件下生长的影响。我们将使用该行均值作为GWAS分析的输入，并使用先前收集的SNP基因型数据进行分析。与表型变异相关的基因座将用于选择适当的父母进行育种。