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Related Concept Videos

Evolutionary Processes in Microbes01:26

Evolutionary Processes in Microbes

Microbial evolution occurs rapidly due to short generation times and a variety of genetic processes, including horizontal gene transfer, mutation, recombination, and genetic drift. These mechanisms collectively enable microbes to adapt swiftly to changing environments.Horizontal gene transfer (HGT) allows genes to move between different species and occurs through three main mechanisms: conjugation, transformation, and transduction. Conjugation involves direct cell-to-cell contact for DNA...
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Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat
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Published on: September 20, 2016

Evolution in microbes.

Edo Kussell1

  • 1Center for Genomics and Systems Biology, Department of Biology, Department of Physics, New York University, New York, New York 10003, USA. edo.kussell@nyu.edu

Annual Review of Biophysics
|May 10, 2013
PubMed
Summary
This summary is machine-generated.

This review explores experimental microbial evolution, examining adaptive walks and physiological heterogeneity. Understanding these dynamics is key to advancing evolutionary biology research.

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Area of Science:

  • Microbial evolution
  • Evolutionary biology
  • Genetics

Background:

  • Experimental evolution studies diverse evolutionary phenomena.
  • Key concepts include trade-offs, epistasis, and fluctuating environments.
  • Theoretical predictions guide experimental design.

Purpose of the Study:

  • To provide a comprehensive overview of experimental microbial evolution.
  • To highlight conceptual points and theoretical predictions.
  • To integrate genetic and physiological perspectives.

Main Methods:

  • Survey of experimental studies in microbial evolution.
  • Analysis of population trajectories as adaptive walks.
  • Examination of nongenetic heterogeneity from a physiological viewpoint.

Main Results:

  • Experimental evolution illuminates trade-offs, epistasis, and adaptation.
  • Fitness landscapes and genetic structures are experimentally probed.
  • Nongenetic heterogeneity plays a significant role in population dynamics.

Conclusions:

  • Experimental evolution offers insights into evolutionary processes.
  • Integrating genetic and physiological perspectives is a future challenge.
  • Further research is needed to bridge adaptive walks and nongenetic heterogeneity.