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Related Experiment Videos

Evolution by acquisition: the case for horizontal gene transfers.

M W Smith1, D F Feng, R F Doolittle

  • 1Molecular Genetics Laboratory, Salk Institute for Biological Studies, San Diego, CA 92186-5800.

Trends in Biochemical Sciences
|December 1, 1992
PubMed
Summary
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Horizontal gene transfer between eukaryotes and prokaryotes is a controversial topic in molecular evolution. This study examines evidence for and against such gene acquisitions, contributing to the ongoing debate.

Area of Science:

  • Molecular Biology
  • Evolutionary Biology
  • Genetics

Background:

  • Horizontal gene transfer (HGT) is a significant factor in evolution, but its role is debated.
  • Claims of HGT between eukaryotes and prokaryotes are particularly controversial.
  • Understanding HGT is crucial for comprehending genome evolution.

Purpose of the Study:

  • To critically evaluate the evidence for and against horizontal gene transfer between eukaryotes and prokaryotes.
  • To synthesize current research on controversial HGT events.
  • To contribute to the ongoing scientific discussion on HGT's evolutionary impact.

Main Methods:

  • Review of existing scientific literature.
  • Analysis of case studies reporting potential eukaryotic-prokaryotic HGT.

Related Experiment Videos

  • Comparative genomics and phylogenetic analysis (implied).

    • Main Results:

    • Presents arguments supporting specific instances of HGT.
    • Presents counterarguments and alternative explanations for observed genetic similarities.
    • Highlights the challenges in definitively proving HGT events.

    Conclusions:

    • The evidence for HGT between eukaryotes and prokaryotes remains contentious.
    • Further research is needed to resolve specific cases and understand the full scope of HGT.
    • The debate underscores the complexity of evolutionary processes.