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Horizontal gene transfer and mobile genetic elements in marine systems

Patricia A Sobecky1, Tracy H Hazen

  • 1Georgia Institute of Technology, School of Biology, Atlanta, GA, USA.

Methods in Molecular Biology (Clifton, N.J.)
|March 10, 2009
PubMed

Insights

The marine mobilome, comprising mobile genetic elements (MGEs), drives microbial evolution via horizontal gene transfer (HGT). Research reveals novel MGE biodiversity and its ecological impact across diverse marine environments.

Area of Science:

  • Microbiology
  • Genetics
  • Marine Ecology

Background:

  • Microbial communities harbor a diverse mobilome, including viruses and plasmids.
  • Mobile genetic elements (MGEs) facilitate horizontal gene transfer (HGT), driving microbial evolution and adaptation.
  • Marine ecosystems represent a vast, largely unexplored reservoir of mobilome diversity.

Purpose of the Study:

  • To investigate the distribution, diversity, and ecological roles of MGEs in marine environments.
  • To understand the impact of HGT agents and environmental factors on marine mobilome composition.
  • To explore the contribution of the marine mobilome to microbial adaptation and evolution.

Main Methods:

  • Characterization of MGEs using various molecular and ecological approaches.
  • Analysis of mobilome composition and structure in relation to environmental parameters.
  • Case studies examining HGT events in coastal, open-ocean, and deep-sea ecosystems.

Main Results:

  • Identification of novel and diverse MGEs in marine microbial communities.
  • Demonstration of HGT as a key driver of microbial adaptation in marine ecosystems.
  • Evidence that environmental parameters influence marine mobilome structure and function.

Conclusions:

  • The marine mobilome is a rich source of genetic innovation, significantly impacting microbial community evolution.
  • Understanding marine MGEs is crucial for comprehending HGT dynamics and microbial adaptation.
  • Further research into marine mobilomes will uncover new insights into microbial ecology and evolution.

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