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Updated: Jul 14, 2026

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information
09:37

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Published on: August 15, 2019

OMA Browser--exploring orthologous relations across 352 complete genomes.

Adrian Schneider1, Christophe Dessimoz, Gaston H Gonnet

  • 1Institute of Computational Science, ETH Zurich, Switzerland. schneadr@inf.ethz.ch

Bioinformatics (Oxford, England)
|June 5, 2007
PubMed
Summary

The OMA Browser tool allows exploration of evolutionary protein relationships across 352 genomes. It visualizes orthologous groups and sequence pairs, distinguishing one-to-one, one-to-many, and many-to-many orthologs.

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Last Updated: Jul 14, 2026

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Area of Science:

  • Comparative genomics
  • Bioinformatics
  • Evolutionary biology

Background:

  • Identifying orthologs is crucial for understanding protein evolutionary relationships.
  • Large-scale projects like the Orthologous MAtrix (OMA) project address this challenge.
  • The OMA project provides a foundation for exploring orthologous relations.

Purpose of the Study:

  • To introduce the OMA Browser, a web-based tool for exploring orthologous relations.
  • To facilitate the investigation of evolutionary links between proteins across numerous species.
  • To provide a user-friendly interface for accessing and visualizing ortholog data.

Main Methods:

  • Leveraging data from the OMA project.
  • Developing a web-based application (OMA Browser).
  • Implementing visualization methods for orthologous groups and sequence pairs.

Main Results:

  • The OMA Browser enables exploration of orthologous relations across 352 complete genomes.
  • Users can view orthologs as groups across species or as sequence pairs.
  • The tool distinguishes between one-to-one, one-to-many, and many-to-many orthologs.

Conclusions:

  • The OMA Browser is a valuable resource for comparative genomics research.
  • It enhances the accessibility and usability of ortholog data.
  • Facilitates deeper insights into protein evolution and function.