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Elements
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Interactions between plasmids and other mobile genetic elements affect their transmission and persistence.

Francisco Dionisio1, Rita Zilhão2, João Alves Gama3

  • 1cE3c-Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Campo Grande 1749-016, Lisboa, Portugal; Departamento de Biologia Vegetal, Faculdade de Ciências, Universidade de Lisboa, Campo Grande 1749-016, Lisboa, Portugal.

Plasmid
|February 17, 2019
PubMed
Summary

Plasmids drive bacterial evolution and adaptation. Interactions with other genetic elements, like other plasmids, significantly influence plasmid persistence and spread, especially for antibiotic resistance genes.

Keywords:
Antibiotic resistanceConjugationEvolutionInteractionsPersistencePlasmids

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Area of Science:

  • Microbiology and Genetics
  • Bacterial Evolution and Adaptation
  • Mobile Genetic Elements

Background:

  • Plasmids are extrachromosomal genetic elements crucial for bacterial adaptation.
  • Plasmids can impose fitness costs on host bacteria in the absence of selection.
  • Natural bacterial isolates often contain a complex array of mobile genetic elements.

Purpose of the Study:

  • To review interactions between plasmids and other genetic elements.
  • To understand how these interactions impact plasmid persistence and evolution.
  • To focus on effects on host fitness and plasmid transfer efficiency.

Main Methods:

  • Literature review focusing on plasmid interactions.
  • Analysis of impacts on fundamental plasmid traits (fitness, transfer).
  • Illustration with examples from clinically relevant bacteria.

Main Results:

  • Interactions between plasmids and other mobile elements shape plasmid evolution.
  • These interactions can modify the fitness costs/benefits associated with plasmids.
  • Interactions influence the efficiency of plasmid transfer between bacterial hosts.

Conclusions:

  • The interplay of mobile genetic elements is critical for plasmid dynamics in bacteria.
  • Understanding these interactions is key to controlling the spread of traits like antibiotic resistance.
  • Further research into these complex interactions is warranted for clinical and evolutionary insights.