Barley dwarfs acting big in agronomy. Identification of genes and characterization of proteins involved in dwarfism, lodging resistance and crop yield

大麦在农艺方面的表现让大麦相形见绌。

基本信息

  • 批准号:
    168149450
  • 负责人:
  • 金额:
    --
  • 依托单位:
  • 依托单位国家:
    德国
  • 项目类别:
    Research Fellowships
  • 财政年份:
    2010
  • 资助国家:
    德国
  • 起止时间:
    2009-12-31 至 2012-12-31
  • 项目状态:
    已结题

项目摘要

Barley (Hordeum vulgare) is an important cereal grain which serves as major animal fodder crop as well as basis for malt beverages or staple food. Currently barley is ranked fourth in terms of quantity of cereal crops produced worldwide. In times of a constantly growing world population in conjunction with an unforeseeable climate change and groundwater depletion, the accumulation of knowledge concerning cereal growth and rate of yield gain is important. The Nordic Genetic Resource Center holds a major collection of barley mutants produced by irradiation or chemical treatment. One phenotypic group of barley varieties are dwarf mutants (erectoides, brachytic, semidwarf, uzu). They are characterized by a compact spike and high rate of yield while the straw is short and stiff, enhancing the lodging resistance of the plant. Obviously they are of applied interest, but they are also of scientific interest as virtually nothing is known about the genes behind the development of plant dwarfism. The aim of this project is to identify and isolate the genes carrying the mutations by using state of the art techniques for gene cloning at the Carlsberg Laboratory. The identified genes will be connected with the mutant phenotype to reveal the gene function in general. One or two genes will be overexpressed and the resulting recombinant proteins will be biochemically and structurally characterized. The insights how the mutation effects the protein will display the protein function in particular. Identified genes and their mutant alleles will be tested in the barley breeding program of the Carlsberg brewery.
大麦是一种重要的粮食作物,是主要的动物饲料作物,也是麦芽饮料和主食的基础。目前,大麦在全球谷物产量中排名第四。在世界人口不断增长、气候变化不可预见和地下水枯竭的时代,积累有关谷物生长和产量增长率的知识非常重要。北欧遗传资源中心收集了大量通过辐射或化学处理产生的大麦突变体。大麦品种的一个表型组是矮秆突变体(直立突变体、短穗突变体、半矮秆突变体、乌兹突变体)。其特点是穗部紧凑,产量高,秸秆短而硬,增强了植株的抗倒伏能力。显然,它们具有应用价值,但它们也具有科学价值,因为实际上对植物侏儒症发展背后的基因一无所知。该项目的目的是通过使用嘉士伯实验室最先进的基因克隆技术来鉴定和分离携带突变的基因。将鉴定的基因与突变表型联系起来,以揭示基因的一般功能。一个或两个基因将被过表达,所得重组蛋白将被生化和结构表征。了解突变对蛋白质的影响将特别显示蛋白质的功能。已鉴定的基因及其突变等位基因将在嘉士伯啤酒厂的大麦育种计划中进行测试。

项目成果

期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Induced mutations in circadian clock regulator Mat-a facilitated short-season adaptation and range extension in cultivated barley
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Dr. Christoph Dockter其他文献

Dr. Christoph Dockter的其他文献

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