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Related Experiment Videos

Genome and protein evolution in eukaryotes.

Richard R Copley1, Ivica Letunic, Peer Bork

  • 1European Molecular Biology Laboratory, Meyerhofstrasse 1, 69012 Heidelberg, Germany. copley@embl-heidelberg.de

Current Opinion in Chemical Biology
|February 6, 2002
PubMed
Summary
This summary is machine-generated.

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Comparative genomics reveals complex gene relationships and domain evolution across species. This highlights significant diversity in eukaryotic genomes, shaped by evolutionary processes and differing functional needs.

Area of Science:

  • Genomics
  • Evolutionary Biology
  • Bioinformatics

Background:

  • Completion of the Arabidopsis thaliana and human genome sequences provides unprecedented resources.
  • Availability of fully sequenced eukaryotic genomes enables comparative analyses.

Purpose of the Study:

  • To understand evolutionary processes shaping eukaryotic genomes.
  • To investigate gene content diversity and functional annotation transfer.

Main Methods:

  • Comparative genomic analysis of disparate eukaryotic lineages.
  • Examination of gene family evolution and domain recombination.

Main Results:

  • Complex many-to-many gene relationships observed between species.
  • Gene families exhibit expansion, contraction, and domain recombination.

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  • Some novel domain families appear lineage-specific.

    • Conclusions:

    • Eukaryotic genomes display significant diversity in gene content.
    • Evolutionary dynamics, including gene duplication and domain shuffling, drive this diversity.
    • Functional annotation transfer across species is challenging due to complex gene relationships.