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Cell Signaling in Plants01:25

Cell Signaling in Plants

5.7K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
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Plant Breeding and Biotechnology01:59

Plant Breeding and Biotechnology

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Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Cis-regulatory Sequences02:02

Cis-regulatory Sequences

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Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
9.9K
Cell Specific Gene Expression01:58

Cell Specific Gene Expression

13.6K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.6K
Combinatorial Gene Control02:33

Combinatorial Gene Control

8.4K
Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
8.4K

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相关实验视频

Updated: Jul 17, 2025

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
08:09

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics

Published on: June 17, 2012

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构建植物基因规范信息知识库的方法论

Hadi Nayebi Gavgani1,2, Erich Grotewold1, John Gray3

  • 1Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, USA.

Methods in molecular biology (Clifton, N.J.)
|September 8, 2023
PubMed
概括

我们开发了一种方法来创建专门的植物基因调节知识库,以GRASSIUS. 这使得能够有效地获取关于草种,特别是玉米的转录因子和蛋白质-DNA相互作用的关键数据.

关键词:
数据库数据库数据库是一个数据库.格拉西乌斯·格拉西乌斯·格拉西乌斯 (Grassius Grassius) 是一个伟大的科学家.基因调节 基因调节知识库方法论知识库方法论植物转录因子 植物转录因子

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Geomagnetic Field Gmf and Plant Evolution: Investigating the Effects of Gmf Reversal on Arabidopsis thaliana Development and Gene Expression
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相关实验视频

Last Updated: Jul 17, 2025

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08:09

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科学领域:

  • 生物信息学是一种生物信息学.
  • 植物基因组学 植物基因组学
  • 分子生物学分子生物学

背景情况:

  • 生物数据,特别是来自高通量omics技术的生物数据,正在迅速增加.
  • 多样化和多学科数据需要精心设计的数据库来组织和呈现.
  • 专注的数据库对于研究人员有效访问相关数据至关重要.

研究的目的:

  • 描述实施植物基因调控知识库的方法.
  • 将GRASSIUS知识库作为这种方法的一个例子.
  • 为了实现植物基因调控数据的灵活组织,呈现和扩展.

主要方法:

  • 开发了一种创建专业在线数据库的方法.
  • 实施了GRASSIUS知识库,专注于草种,特别是玉米 (Zea mays).
  • 关于转录因子 (TFs),协调剂 (CRs) 和蛋白质-DNA相互作用的综合数据.

主要成果:

  • 成功实现了GRASSIUS知识库的数据,查询和工具功能.
  • GRASSIUS组织并展示了草种的基因调节数据.
  • 该方法允许未来的数据集扩展.

结论:

  • 描述的方法适用于开发和更新植物基因调控知识库.
  • GRASSIUS为研究草的基因调节的研究人员提供了宝贵的资源.
  • 这种方法支持日益增长的专门生物信息数据库的需求.