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Monitoring Spatial Segregation in Surface Colonizing Microbial Populations

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Published on: October 29, 2016

Modeling evolution of spatially distributed bacterial communities: a simulation with the haploid evolutionary

Alexandra Klimenko, Yury Matushkin, Nikolay Kolchanov

BMC Evolutionary Biology

|February 25, 2015

Summary

Spatial modeling reveals how environmental factors impact microbial community evolution. Uneven distributions influence selection intensity and evolution rates, while genetic structure remains stable despite environmental changes.

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Area of Science:

Systems biology
Microbial ecology
Evolutionary biology

Background:

Multiscale modeling is a key tool in systems biology for integrating diverse biological organization levels.
This study focuses on spatially distributed microbial communities and environmental influences.

Purpose of the Study:

To construct and simulate multiscale models of spatially distributed microbial communities.
To investigate the impact of unevenly distributed environmental factors on genetic diversity and evolution.

Main Methods:

Expanded Haploid Evolutionary Constructor software with spatial modeling capabilities (1D, 2D, 3D).
Developed and simulated models of spatially distributed microbial communities.

Main Results:

Spatial distribution of cells influences both the intensity of selection and the rate of evolution.
Demonstrated the effect of spatial arrangement on microbial community dynamics.

Conclusions:

In heterogeneous communities, environmental flow changes can cause local population dynamics shifts, but genetic structure remains stable.
Chemotaxis significantly impacts the evolution of microbial community members in spatially heterogeneous environments.