18-BTT EAGER: A system for the production of haploid inducer lines and cytoplasmic male sterile doubled haploids for efficient hybrid production

18-BTT EAGER：用于生产单倍体诱导系和细胞质雄性不育双单倍体的系统，用于高效杂交生产

• 批准号: BB/S019995/1
• 负责人: Stephen Jackson
• 金额: $ 25.51万
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=BB%2FS019995%2F1
• 关键词: 18; BTT; EAGER; system; production

Hybrid cultivars are a cornerstone of modern crop production. Seed companies spend many years developing elite inbred parental lines that are used to produce the hybrid seed that farmers plant each season. A major bottleneck in the plant breeding cycle is the need to repeatedly backcross promising parental lines to make them fully inbred. One time-saving solution to this challenge is to use double haploids to directly produce fully inbred lines in one generation. With this approach a haploid plant is first isolated, and then chemical treatment is used to double its chromosomes. The resulting double haploid is by definition fully inbred. For this strategy to be of practical use to plant breeders, a reliable method for producing the initial haploid plants is required. In this proposal our objective is to develop and test a general strategy for making haploid inducer lines that should provide plant breeders with the tool they need to efficiently produce double haploid elite parental lines for hybrid seed production.

混合品种是现代作物生产的基石。种子公司花了很多年来开发精英亲属的父母系列，用于生产每个季节种植农民的混合种子。植物育种周期中的主要瓶颈是需要反复回索的父母线条以使其完全近交。解决这一挑战的一种时间解决方案是使用双单倍体直接在一代人中直接产生完全近交系列。使用这种方法，单倍体植物首先分离出来，然后使用化学处理来翻倍其染色体。根据定义，由此产生的双单倍体是完全近交的。为了使这种策略用于种植育种者，需要一种可靠的生产初始单倍体植物的方法。在此提案中，我们的目标是制定和测试制造单倍体诱导剂线的一般策略，该策略应为植物育种者提供有效生产双单倍体父母系列的工具，以产生混合种子。