相关实验视频
Updated: Apr 28, 2026

08:43
Metagenomic Analysis of Silage
Published on: January 13, 2017
18.3K
一个新的参考数据库,用于对人类肠道微生物组进行有效的元基因组分析
Bo Zheng1,2, Junming Xu3, Yijie Zhang2
1State Key Laboratory of Chemical Oncogenomics, Tsinghua Shenzhen International Graduate School, Shenzhen, 518055, PR China.
Heliyon
|September 24, 2024
概括
这项研究介绍了微生物组收集导航器 (MBCN),这是一个全面的人类肠道 prokaryotic 基因组数据库. MBCN及其相关平台MicrobiotaCN,为微生物组研究提供了标准化和高效的元基因组分析.
科学领域:
- 微生物组研究的研究.
- 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:
- 甲基因组射击枪测序识别了微生物,但由于各种参考数据库,它在跨项目可比性方面面临挑战.
- 难以比较和元分析元基因组数据的困难阻碍了全面的微生物组研究.
研究的目的:
- 开发一个全新的,全面的人类肠道 prokaryotic 基因组集合 (微生物组集合导航器 - MBCN).
- 建立一个标准化的元基因组分析管道和平台 (MicrobiotaCN) 进行高效的微生物组研究.
主要方法:
- 通过使用标准化管道,从2379个人类肠道样本中组装了16785个元基因组组合基因组 (MAG).
- 集成MAG与公共基因组,集群它们,并构建泛基因组,为MBCN创建Kraken2和Bracken数据库.
- 开发了MicrobiotaCN网络平台,集成MBCN数据库,分析管道和可视化工具.
主要成果:
- 与现有的数据库相比,MBCN数据库在元基因组读取概况方面表现出更高的全面性和准确性.
- 使用MBCN对1082个人类肠道样本进行了分析,并使用网络平台上的元数据进行了分析.
- 微生物生物CN平台为元基因组分析提供了一个统一的,标准化的管道.
结论:
- MBCN是人类肠道 prokaryotic 基因组的一个有价值,全面的资源.
- 微生物群CN提供了一个强大的,统一的工具,用于高效和标准化的元基因组分析.
- 集成的MBCN和MicrobiotaCN系统推进了微生物组研究能力.
相关概念视频
Modern Molecular Taxonomy
834
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...
834
Methods to Assess Microbial Communities
58
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...
58
Introduction to the Human Microbiota
199
Microorganisms colonize various regions of the human body, including the mouth, nasal passages, throat, stomach, intestines, urogenital tract, and skin. The total number of microbial cells is estimated to range from 10¹³ to 10¹⁴—comparable to, or exceeding, the number of human somatic cells. This host–microbiome relationship has led to the conceptualization of humans as supraorganisms, wherein microbial communities perform vital roles in development, immunity,...
199
Human Virome
47
The human body harbors a vast and diverse viral community known as the human virome. The virome includes bacteriophages that infect bacteria, and eukaryotic viruses that infect human cells. Transient dietary and environmental viruses also contribute to this dynamic ecosystem. Estimates suggest the human body may contain on the order of 10¹³ viral particles, though abundance varies widely by body site and detection method.Comprehensive characterization of the virome has become possible...
47

