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相关概念视频

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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RNA-seq03:21

RNA-seq

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
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Genome-wide Association Studies-GWAS01:11

Genome-wide Association Studies-GWAS

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
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相关实验视频

Updated: May 29, 2025

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
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MAAT:一种新的非参数贝叶斯框架,用于在全转录组协会研究中结合多个功能注释.

Han Wang1, Xiang Li2, Teng Li3

  • 1College of Science, China Agricultural University, Beijing, China.

Genome biology
|February 5, 2025
PubMed
概括

全转录组关联研究 (TWAS) 现在可以整合多个基因组注释. 我们的新MAAT模型通过结合各种注释和确定对基因调节发现最有影响的注释来改进TWAS.

关键词:
功能注释功能注释使用共变量 (PPMx) 的产品分区模型.精神病学特征 精神病学特征全转录组关联研究 (TWAS)

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Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
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相关实验视频

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科学领域:

  • 遗传学 遗传学 是一个
  • 生物信息学是一种生物信息学.
  • 基因组学就是基因组学.

背景情况:

  • 全转录组关联研究 (TWAS) 将全基因组关联研究 (GWAS) 的变异转化为受调节的基因.
  • 目前的注释辅助TWAS方法主要使用表观遗传学数据,并假设与SNP效应大小的正相关性,这往往是不足的.

研究的目的:

  • 开发一种新的方法,MAAT,用于将多个基因组注释纳入TWAS.
  • 引入一个指标来识别TWAS中最重要的注释.

主要方法:

  • 提出了MAAT,这是TWAS的一个新模型,它集成了多种类型的基因组注释.
  • 开发了一个指标来评估TWAS框架内不同注释的重要性.

主要成果:

  • MAAT扩展了现有的TWAS工具的功能,通过结合不同的注释.
  • 新的指标有助于确定驱动TWAS发现的关键注释.

结论:

  • 通过利用多个注释,MAAT为TWAS提供了更全面的方法.
  • 这种方法增强了TWAS在基因调节研究中的力量和可解释性.