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Types of Genetic Transfer Between Organisms

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Detection of Horizontal Gene Transfer Mediated by Natural Conjugative Plasmids in E. coli

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Published on: March 24, 2023

Programming Dynamic Division of Labor Using Horizontal Gene Transfer.

Grayson S Hamrick^1,2,3, Rohan Maddamsetti^1,2, Hye-In Son^1,2

¹Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States.

ACS Synthetic Biology

|April 3, 2024

Summary

This summary is machine-generated.

Dynamic division of labor (DDOL) enables robust microbial communities to maintain complex metabolic pathways. This strategy, mediated by horizontal gene transfer (HGT), overcomes limitations of traditional division of labor for biomanufacturing applications.

Keywords:

biomanufacturing division of labor horizontal gene transfer metabolic engineering microbial consortia natural product biosynthesis

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Last Updated: Jun 29, 2025

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Area of Science:

Microbial metabolic engineering
Synthetic biology
Systems biology

Background:

Metabolic engineering of microbes offers applications in biomanufacturing, bioprocessing, and environmental remediation.
Complex metabolic pathways impose significant metabolic burden on host cells, limiting efficiency and biomass.
Current division of labor (DOL) strategies face challenges in maintaining distinct subpopulations due to competition and population dynamics.

Purpose of the Study:

To introduce and define dynamic division of labor (DDOL) as a strategy to overcome limitations in maintaining complex metabolic pathways.
To demonstrate through modeling that DDOL can enable robust maintenance of burdensome, multistep pathways.
To investigate the role of horizontal gene transfer (HGT) in mediating DDOL and its prevalence in natural microbial communities.

Main Methods:

Computational modeling to simulate and analyze dynamic division of labor (DDOL) dynamics.
Plasmid genomics to identify evidence of DDOL in natural microbial communities.
Theoretical framework development for harnessing HGT to stabilize synthetic metabolic pathways.

Main Results:

Modeling indicates that DDOL, involving dynamic and reversible interchange between indiscrete populations, overcomes limitations of traditional DOL.
Horizontal gene transfer (HGT) is proposed as a mechanism mediating DDOL.
Genomic analysis provides evidence that DDOL is a strategy employed by natural microbial communities.

Conclusions:

DDOL offers a robust solution for maintaining complex, synthetic metabolic pathways in microbial communities.
Bioengineers can leverage HGT to stabilize engineered metabolic pathways, enhancing system robustness.
This approach facilitates the development of reliable engineered microbial systems for diverse applications.