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相关概念视频

Seed Structure and Early Development of the Sporophyte02:33

Seed Structure and Early Development of the Sporophyte

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Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
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Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
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The technique...
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相关实验视频

Updated: Jun 28, 2025

Obtaining High-Quality Transcriptome Data from Cereal Seeds by a Modified Method for Gene Expression Profiling
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开发大麦种子的转录组景观.

Martin Kovacik1,2, Anna Nowicka1,3, Jana Zwyrtková1

  • 1Institute of Experimental Botany, Czech Acad Sci, Centre of Plant Structural and Functional Genomics, Šlechtitelů 31, 779 00 Olomouc, Czech Republic.

The Plant cell
|April 18, 2024
PubMed
概括

这项研究绘制了大麦种子发育过程中的基因表达,识别了控制生长的关键基因和表观遗传因素. 它揭示了动态色素调节,特别是在内精子中,对谷物发育至关重要.

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科学领域:

  • 植物生物学 植物生物学
  • 基因组学就是基因组学.
  • 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.

背景情况:

  • 像大麦这样的谷物谷物是重要的食物和料来源.
  • 了解大麦种子的发育对于作物改善至关重要.

研究的目的:

  • 为了创建一个空间时空的转录基因地图,开发大麦种子.
  • 识别大麦谷物发育的基因,转录因子和表观遗传调节者.

主要方法:

  • 对大麦胚胎,内和母体组织进行转录基因分析,时间为受精后4-32天.
  • 权重基因共同表达网络分析.
  • 对转录因子的动机丰富分析.
  • 对染色质调节剂和基因素修饰的评估 (H3K27me3).

主要成果:

  • 鉴定组织特异性标记基因和调节大麦种子发育的转录因子家族.
  • 演示动态表观遗传过程,特别是在内精子发育过程中.
  • 在内体组织和特定发育基因中观察了减少的H3K27me3修饰.

结论:

  • 这项研究提供了一个全面的基因表达图谱,用于开发大麦谷物.
  • 表观遗传调节,包括H3K27me3修饰,在大麦内精子发育中起着重要作用.
  • 该资源有助于未来对控制大麦谷物发育的途径的功能研究.