相关实验视频

Updated: Jul 21, 2026

Metagenomic Analysis of Silage

Metagenomic Analysis of Silage

Published on: January 13, 2017

微生物分子方法对使用纳米孔测序在元基因组学研究中的适应性采样的影响

Josephine Herbert^1,2, Stanley Thompson^2,3, Angela H Beckett^1,2

¹Centre for Enzyme Innovation, University of Portsmouth, Portsmouth, Hampshire, PO1 2DT, UK.

Environmental microbiome

|May 5, 2025

概括

选择合适的DNA提取套件对于准确的微生物组分析至关重要. 牛津纳米孔技术适应性采样有效丰富低丰度基因组,为元基因组学研究提供了强大的工具.

科学领域:

微生物学微生物学
基因组学就是基因组学.
生物信息学是一种生物信息学.

背景情况:

甲基因组学对于在临床和环境环境中进行微生物组探索至关重要.
测序方面的进步,比如牛津纳米孔技术 (ONT) 适应性采样,有助于元基因组研究.
微生物材料的公正回收仍然是一个挑战,需要对新技术进行评估.

研究的目的:

评估DNA提取套件和测序化学对元基因组分析的影响.
为了比较不同DNA提取套件对微生物组合的性能.
为了评估纳米孔序列化学 (LSK109与LSK112 Q20+) 的元基因组准确性.
为了确定适应性采样对实时基因组丰富的有效性.

主要方法:

使用来自ZymoBIOMICS微生物社区标准的各种商业套件提取DNA.
16S rRNA amplicon测序用于评估微生物组合偏差.
纳米孔测序使用LSK109和LSK112 Q20+化学.
适应性采样用于Saccharomyces cerevisiae的有针对性的丰富.

主要成果:

机械珠DNA提取套件产生了最少偏差的结果.
通过LSK112 Q20+化学来提高基调准确性并没有显著提高元基因组组.
适应性采样实现了低丰度基因组的目标丰富度增加5至7倍.
适应性采样效率在旧的和新的ONT测序化学物质中是一致的.

结论:

选择最小化偏差的DNA提取方法对于准确的元基因组表征至关重要.
较旧的ONT测序化学可以产生可靠的元基因组结果,为研究人员提供灵活性.
在ONT适应性采样中,在各种元基因组样本中显示了针对性基因组丰富的巨大潜力.
研究人员应该考虑适应性抽样的权衡,例如减少吞吐量,用于低丰度目标.

关键词:

16S rRNA 是一个16S rRNA.适应性抽样采集方式它们是DNA DNA DNA DNA.提取DNA 提取DNA的方法转基因组学是指转基因组学.这是一个纳米孔.序列化是指测序的使用.第三代测序系统是第三代测序系统.

更多相关视频

Nanopore DNA Sequencing for Metagenomic Soil Analysis

Nanopore DNA Sequencing for Metagenomic Soil Analysis

Published on: December 14, 2017

Sequencing of mRNA from Whole Blood using Nanopore Sequencing

Sequencing of mRNA from Whole Blood using Nanopore Sequencing

Published on: June 3, 2019

相关概念视频

Modern Molecular Taxonomy

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...

Applications of Molecular Taxonomy

Applications of Molecular Taxonomy

Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...

Methods to Assess Microbial Populations

Methods to Assess Microbial Populations

Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...

Methods to Assess Microbial Communities

Methods to Assess Microbial Communities

Microbial communities, comprising bacteria, archaea, and eukaryotic microorganisms, inhabit diverse ecosystems and play crucial roles in environmental and biological processes. Their diversity is defined by three main parameters: species richness (the number of distinct species), species abundance (the relative quantity of each species), and species evenness (how uniformly individual species are distributed in various locations). These factors together shape the structure and ecological balance...