Related Experiment Video
Updated: Jun 13, 2026
13:33
Maintaining Wolbachia in Cell-free Medium
Published on: July 4, 2007
10.4K
Mixed Wolbachia infections resolve rapidly during in vitro evolution
Cade Mirchandani1,2, Pingting Wang1, Jodie Jacobs1,2
1Department of Biomolecular Engineering, University of California Santa Cruz, Santa Cruz, California, United States of America.
Plos Pathogens
|July 25, 2024
Summary
The wMel Wolbachia strain quickly outcompetes the wRi strain in cell cultures, regardless of initial amounts. This finding is crucial for selecting effective Wolbachia strains for biological control applications.
Area of Science:
- Microbiology
- Evolutionary Biology
- Genetics
Background:
- Wolbachia pipientis, an intracellular symbiont, infects arthropods and nematodes.
- Different Wolbachia strains vary in host-infection and host-switching abilities.
- Strain selection is critical for successful Wolbachia-based biological control.
Purpose of the Study:
- To investigate the interactions between different Wolbachia strains within host cells.
- To understand the competitive dynamics between the wMel and wRi strains.
- To evaluate the potential for Wolbachia strain competition in biological control.
Main Methods:
- Utilized an in vitro cell culture system with multiple Drosophila cell types.
- Created combinatorial infection states with wMel (faithful) and wRi (promiscuous) strains.
- Quantified competitive exclusion and growth dynamics of each strain.
Main Results:
- The wMel strain consistently outcompeted and excluded the wRi strain in vitro.
- This competitive advantage was observed across different host cell types and infection frequencies.
- wMel demonstrated superior in vitro growth and survival compared to wRi.
Conclusions:
- Wolbachia strain competition can lead to deterministic outcomes, favoring strains like wMel.
- Differences in cellular regulation and growth likely explain observed natural infection patterns.
- This study provides a framework for assessing Wolbachia strain compatibility for biological control.
Related Concept Videos
01:16In-vitro Mutagenesis
To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
01:16In vitro Mutagenesis
To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
01:24Evolution of New Traits in Microbes
Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...