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相关概念视频

RNA-seq03:21

RNA-seq

10.1K
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...
10.1K

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相关实验视频

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An Ultrahigh-throughput Microfluidic Platform for Single-cell Genome Sequencing
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基于滴滴的高通量单微生物RNA测序通过smRandom-seq.

Ziye Xu1,2, Yuting Wang2,3, Kuanwei Sheng4,5

  • 1Department of Laboratory Medicine, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.

Nature communications
|August 23, 2023
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概括

我们开发了一种新的单微生物RNA测序 (smRandom-seq) 方法,以揭示个体细菌的基因表达. 这种技术揭示了抗生素耐药性机制和微生物群体动态.

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科学领域:

  • 微生物学 微生物学
  • 基因组学就是基因组学.
  • 分子生物学分子生物学

背景情况:

  • 细菌居住在不同的环境中,包括人体,具有显著的个体差异.
  • 种群层面的转录组学掩盖了细菌群体内的关键异质性.
  • 了解单个细菌的基因表达对于抗菌素耐药性和微生物组研究等领域至关重要.

研究的目的:

  • 开发一种高通量,以滴滴为基础的测定方法,用于单微生物RNA测序 (smRandom-seq).
  • 为了使细菌群体中转录基因组异质性的详细分析.
  • 识别与微生物特征相关的特定基因表达模式,如抗生素耐药性.

主要方法:

  • 基于滴滴的微流体用于单微生物封装和条形码.
  • 在滴滴中进行in situcDNA合成的随机启动器.
  • 基于CRISPR的核糖体RNA (rRNA) 枯竭,用于增强mRNA丰富.
  • 高通量单微生物RNA测序 (smRandom-seq) 分析.

主要成果:

  • smRandom-seq显示了高的物种特异性 (>99%) 和低的双倍率 (1.6%).
  • 该方法实现了减少rRNA污染 (32%) 和敏感基因检测 (中位数约1000基因/E. 美国大肠杆菌.
  • 对单个大肠杆菌的转录组分析显示,在抗生素压力下,具有独特的SOS反应和代谢途径基因表达的独特亚群.

结论:

  • smRandom-seq是一个强大的工具,用于高通量单微生物转录组概况.
  • 这项技术促进了对微生物耐药性,持久性和微生物与宿主相互作用的研究.
  • 这些发现通过剖析人口异质性,为微生物组研究开辟了新的途径.