Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Modern Molecular Taxonomy01:29

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 Taxonomy01:20

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 Communities01:19

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...
Coordination of Gene Expression Processes in Bacteria01:29

Coordination of Gene Expression Processes in Bacteria

The DNA replication, transcription, and translation processes are intricately coupled in bacteria, allowing efficient gene expression and rapid protein synthesis. While this physical and functional coordination is advantageous, it introduces challenges that bacteria overcome through specific regulatory mechanisms.Coupling of Replication, Transcription, and TranslationThe coupling of replication, transcription, and translation is a hallmark of bacterial gene expression. As the replisome unwinds...
Genome Annotation and Assembly03:36

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Deep-branching Chloroflexota lineages illuminate the eco-evolutionary foundation of cross-ecosystem colonization.

Nature communications·2026
Same author

Diversity and environmental distribution of Asgard archaea in shallow saline sediments.

Frontiers in microbiology·2025
Same author

The planktonic freshwater ciliate Balanion planctonicum (Ciliophora, Prostomatea): A cryptic species complex or a "complex species"?

The Journal of eukaryotic microbiology·2025
Same author

Dispersal shapes compositional and functional diversity in aquatic microbial communities.

mSystems·2024
Same author

Global freshwater distribution of Telonemia protists.

The ISME journal·2024
Same author

Centimetre scale functional dispersal limitation of freshwater copiotrophs.

Environmental microbiology·2024

Related Experiment Video

Updated: Jun 10, 2026

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays
14:06

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

Linking stochastic assembly to functional potential, redundancy, and trait patterns in bacterial communities.

Alizée Le Moigne1,2, Adrian-Ştefan Andrei3, Jakob Pernthaler3

  • 1Limnological Station, Department of Plant and Microbial Biology, University of Zurich, Seestrasse 187, Kilchberg, 8802, Switzerland. alizee.le-moigne@inrs.ca.

Microbiome
|June 9, 2026
PubMed
Summary

Stochastic assembly shapes microbial communities, influencing functional redundancy. Despite varied gene presence, functional patterns remained conserved, highlighting ecological constraints over dispersal limitations.

Keywords:
Aquatic bacteriaCommunity assemblyFunctional diversityFunctional redundancyStochasticity

More Related Videos

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
08:03

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations

Published on: December 7, 2021

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform
09:24

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform

Published on: June 6, 2017

Related Experiment Videos

Last Updated: Jun 10, 2026

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays
14:06

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
08:03

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations

Published on: December 7, 2021

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform
09:24

Assembly and Tracking of Microbial Community Development within a Microwell Array Platform

Published on: June 6, 2017

Area of Science:

  • Microbial ecology
  • Community assembly
  • Metagenomics

Background:

  • Stochastic processes influence microbial community composition but their effect on function is debated due to redundancy.
  • The relationship between stochasticity and functional redundancy is poorly understood.
  • This study investigates how stochastic assembly impacts functional redundancy, potential, and traits in lake bacterial communities.

Purpose of the Study:

  • To assess the influence of stochastic assembly on functional redundancy and trait patterns in parallel bacterial communities.
  • To test the hypothesis of "functional dispersal limitation" for cellobiose utilization.
  • To explore the links between stochasticity, functional redundancy, and conserved functional patterns.

Main Methods:

  • Gene- and genome-resolved metagenomics of 20 parallel lake-water bacterial communities.
  • Quantification of functional redundancy across major functional categories.
  • Comparison with null models using genomes from the Genome Taxonomy Database (GTDB).

Main Results:

  • "Functional dispersal limitation" was rejected as some communities with necessary genes did not utilize cellobiose.
  • Functional redundancy mirrored stochastic assembly but was lower within than between communities.
  • Category-specific functional dissimilarity patterns were conserved across diversity scales and compared to a large genome database.

Conclusions:

  • Stochastic assembly shapes functional trait distribution, with redundancy reflecting overall community traits.
  • Functional redundancy and dissimilarity vary by category, indicating conserved functional patterns despite stochastic diversification.
  • Null model comparisons reveal varying functional selection strengths and emphasize the interplay of stochasticity, ecological constraints, and habitat in shaping community function.