Rapid Evolution of wild barley: R-Evolve

野生大麦的快速进化：R-Evolve

• 批准号: BB/V016938/1
• 负责人: Joanne Russell
• 金额: $ 67.71万
• 依托单位: James Hutton Institute
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=BB%2FV016938%2F1
• 关键词: Rapid; Evolution; wild; barley; Evolve

Genetic diversity is the fuel that drives crop improvement. However, in our major cereal crops, by continually crossing closely related high performing individuals, traditional methods of crop improvement have resulted in a drastic loss of overall diversity. While strategies for mobilising diversity controlling simple traits (e.g. disease resistance) from more diverse wild accessions or landraces into cultivars do already exist, none are effective for introducing components of key complex traits that include such as tolerance to biotic or abiotic stresses, or components of yield. We propose to develop a radically different approach to refreshing the diversity in the barley breeding genepool. Our proposed enrichment strategy involves the partial domestication of wild genotypes by incorporating key domestication genes and genes required for modern NW European agriculture in a wild barley background. We will then evaluate the new partial domesticates as both inbreds and F1 hybrids, the latter generated efficiently using a male sterile derivative of a contemporary elite cultivar. We expect to construct completely novel and diverse germplasm pools that will have value for future barley breeding. In the process we will address a fundamental issue that is vexing the genetic resources and breeding communities, i.e. how to efficiently extract value from diverse germplasm in crop improvement programs for complex and multigenic traits.

遗传多样性是推动作物改良的动力。然而，在我们的主要谷类作物中，通过不断杂交密切相关的高性能个体，传统的作物改良方法导致了整体多样性的急剧丧失。虽然已经存在从更多样化的野生品种或地方品种中调动控制简单性状（如抗病性）的多样性的策略，但没有一种策略有效地引入关键复杂性状的组成部分，包括对生物或非生物胁迫的耐受性，或产量组成部分。我们建议开发一种完全不同的方法来刷新大麦育种基因库的多样性。我们提出的富集策略包括在野生大麦背景下，通过结合关键驯化基因和现代西北欧洲农业所需的基因，对野生基因型进行部分驯化。然后，我们将评估新的部分驯化品种作为自交系和F1杂交种，后者是利用当代优秀品种的雄性不育衍生物有效产生的。我们期望构建全新和多样化的种质资源库，这将对未来的大麦育种有价值。在此过程中，我们将解决一个困扰遗传资源和育种界的根本问题，即如何在复杂和多基因性状的作物改良计划中有效地从多种种质中提取价值。

项目成果

Isolation and characterization of the gene HvFAR1 encoding acyl-CoA reductase from the cer-za.227 mutant of barley (Hordeum vulgare) and analysis of the cuticular barrier functions.

• DOI: 10.1111/nph.19063
• 发表时间: 2023-06
• 期刊: The New phytologist
• 作者: Y. Müller;Payal Patwari;Tyll Stöcker;V. Zeisler-Diehl;U. Steiner;Chiara Campoli;Lea Grewe;M. Kuczkowska;Maya Marita Dierig;Sarah B. Jose;A. Hetherington;I. Acosta;H. Schoof;L. Schreiber;P. Dörmann

A high-resolution single-molecule sequencing-based Arabidopsis transcriptome using novel methods of Iso-seq analysis.

• DOI: 10.1186/s13059-022-02711-0
• 发表时间: 2022-07-07
• 期刊: Genome biology
• 影响因子: 12.3

Measuring the frequency and distribution of meiotic crossovers in homozygous barley inbred lines.

• DOI: 10.3389/fpls.2022.965217
• 发表时间: 2022
• 期刊: Frontiers in plant science
• 影响因子: 5.6

Natural variation in HvAT10 underlies grain cell wall-esterified phenolic acid content in cultivated barley.

• DOI: 10.3389/fpls.2023.1095862
• 发表时间: 2023
• 期刊: Frontiers in plant science
• 影响因子: 5.6

The evolutionary patterns of barley pericentromeric chromosome regions, as shaped by linkage disequilibrium and domestication.

• DOI: 10.1111/tpj.15908
• 发表时间: 2022-09
• 期刊: PLANT JOURNAL
• 影响因子: 7.2
• 作者: Chen, Yun-Yu;Schreiber, Miriam;Bayer, Micha M.;Dawson, Ian K.;Hedley, Peter E.;Lei, Li;Akhunova, Alina;Liu, Chaochih;Smith, Kevin P.;Fay, Justin C.;Muehlbauer, Gary J.;Steffenson, Brian J.;Morrell, Peter L.;Waugh, Robbie;Russell, Joanne R.
• 通讯作者: Russell, Joanne R.