Related Experiment Video
Updated: Apr 21, 2026
11:23
Purifying the Impure: Sequencing Metagenomes and Metatranscriptomes from Complex Animal-associated Samples
Published on: December 22, 2014
34.6K
The integrated microbial genome resource of analysis
Alice Checcucci1, Alessio Mengoni
1Department of Biology, University of Florence, via della Madonna del Piano 6, 50019, Sesto Fiorentino, Firenze, Italy.
Methods in Molecular Biology (Clifton, N.J.)
|October 26, 2014
Summary
The Integrated Microbial Genomes and Metagenomes (IMG) system offers comprehensive data and tools for analyzing microbial genomes and metagenomes. It supports comparative analysis and features a case study on pangenome analysis.
Area of Science:
- Microbiology
- Bioinformatics
- Genomics
Background:
- The Integrated Microbial Genomes and Metagenomes (IMG) is a crucial biocomputational resource.
- Developed by the US Department of Energy (DOE)-Joint Genome Institute (JGI), IMG aids in the analysis of microbial genomes and metagenomes.
Purpose of the Study:
- To present the essential features of the IMG system.
- To illustrate its utility through a case study on pangenome analysis.
Main Methods:
- The IMG platform integrates draft and complete genomes from JGI and public sources.
- It encompasses genomes from Archaea, Bacteria, Eukarya, viruses, and plasmids.
- The system provides tools for annotation and comparative analysis.
Main Results:
- The IMG system offers extensive data for microbial genomic and metagenomic research.
- Demonstrated pangenome analysis highlights the system's comparative capabilities.
Conclusions:
- IMG is a valuable resource for researchers studying microbial diversity and function.
- Its features facilitate in-depth genomic and metagenomic investigations.
Related Concept Videos
01:08Evolution of Microbial Genome
83
Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.
83
01:29Modern Molecular Taxonomy
828
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...
828
01:22Introduction to the Human Microbiota
136
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,...
136
01:24Microbial Classification System
1.8K
Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
1.8K
01:24Automated Microbial Diagnostics
62
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
62
01:19Methods to Assess Microbial Communities
54
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...
54