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相关概念视频

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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从单个细胞开始的exome测序

Ioanna Andreou1, Markus Storbeck1, Peter Hahn1

  • 1QIAGEN GmbH, Hilden, Germany.

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|September 26, 2024
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概括
此摘要是机器生成的。

单细胞基因组分析现在可以使用多重位移放大 (MDA) 来进行无偏的DNA放大. 这使得高复杂的下一代测序 (NGS) 库能够在研究中全面检测变异.

关键词:
通过对外组的丰富.基因组学就是基因组学.多重位移放大功率的放大.一个单细胞的单细胞.

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科学领域:

  • 基因组学就是基因组学.
  • 分子生物学分子生物学
  • 生物技术是生物技术.

背景情况:

  • 单细胞基因组分析提供了对发育,瘤和疾病的见解.
  • 单细胞中的有限DNA传统上挑战了下一代测序 (NGS).
  • 多重位移放大 (MDA) 提供了有限的DNA数量的无偏放大.

研究的目的:

  • 描述一个完整的工作流程,从单个细胞或小量的DNA中生成exome-NGS库.
  • 详细介绍全基因组放大,NGS库生成和外基因组丰富的协议.
  • 促进对起源不明的遗传疾病进行全面的遗传变异分析.

主要方法:

  • 使用多重位移放大 (MDA) 来从单细胞或小数量的DNA中进行无偏向的全基因组放大.
  • 从MDA增强的DNA生成高度复杂的NGS库,以实现高覆盖率.
  • 采用混合捕获丰富方法在预放大后用于外基因组测序.

主要成果:

  • 从单个细胞和少量的DNA中成功生成了exome-NGS库.
  • NGS库的高收益率和复杂性确保了有效的变体调用.
  • 演示与Illumina测序仪器兼容的完整工作流程.

结论:

  • MDA技术克服了单细胞基因组分析的DNA限制.
  • 描述的协议使全面的外体序列测序能够识别遗传变异.
  • 这个工作流支持发育生物学,瘤异质性和疾病发病的研究.