Genetic dissection of the resistance to soybean Cyst Nematode (SCN) using Advanced Functional Genomic Tools and Developing Ontario-Adapted SCN-Resistant Cultivars

使用先进功能基因组工具对大豆囊肿线虫 (SCN) 抗性进行基因剖析并开发适应安大略省的 SCN 抗性品种

• 批准号: 567031-2021
• 负责人: Eskandari, MehrzadM
• 金额: $ 3.78万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=763531
• 关键词: Genetic; dissection; resistance; soybean; Cyst

Soybean is currently the first largest field crop in Ontario and rapidly expanding in Canada. Soybean cyst nematode (SCN) is the largest threat to sustainable production of soybean in North America, including Canada. Growing soybean cultivars with diverse sources of the resistance is currently the most effective approach for controlling SCN pressure and increase the yield. The objectives of this collaborative project between the Ontario Ministry of Agriculture, Agriculture and Agri-Food Canada, Grain Farmers of Ontario, SeCan, and the University of Guelph are as follows. First, we will develop new high-yielding soybean cultivars with diverse sources of SCN through establishing breeding populations from crosses between Ontario-adapted elite cultivars and three main sources of SCN and selecting the best lines and germplasm. Second, we will identify genes underling the resistance to SCN in three sources and develop molecular-based selection tools. This work has economic, environmental and social impacts. For example, increased and diversified resistance to SCN, leading to higher realized yield in developed cultivars, are key to uptake by farmers. In light of the developed molecular-based selection tools, we and other interested soybean breeders will also facilitate the development of resilient SCN-resistant cultivars with expanded genetic diversity.

大豆目前是安大略省第一大田间作物，在加拿大迅速扩张。大豆胞囊线虫(SCN)是包括加拿大在内的北美大豆可持续生产的最大威胁。培育抗源多样的大豆品种是目前控制大豆根结线虫压力、提高产量的最有效途径。安大略省农业、农业和农业食品部、安大略省谷物农场主和圭尔夫大学之间的这一合作项目的目标如下。首先，我们将通过安大略省栽培的优良品种与三个主要大豆品种来源的杂交建立育种群体，选择最好的品系和种质，开发具有不同SCN来源的高产大豆新品种。其次，我们将从三个来源鉴定抗SCN的基因，并开发基于分子的选择工具。这项工作具有经济、环境和社会影响。例如，增加和多样化对SCN的抗性，导致开发的品种实现更高的产量，是农民吸收的关键。鉴于已开发的基于分子的选择工具，我们和其他感兴趣的大豆育种者还将促进具有更大遗传多样性的抗SCN弹性品种的开发。