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The “tree of life” describes the evolution of life and the evolutionary relationships between organisms. The root of the tree is the common ancestor to all life on Earth. All other species radiate from this point, much like the branches of a tree. The numerous tips of these branches on the tree of life represent every living, or extant, species. Extinct species, which are species that no longer exist, can be found towards the center of the tree. Currently, these organisms, both...
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Updated: Jun 27, 2025

Navigating MARRVEL, a Web-Based Tool that Integrates Human Genomics and Model Organism Genetics Information
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MetaZooGene Atlas and Database: Reference Sequences for Marine Ecosystems.

Todd D O'Brien1, Leocadio Blanco-Bercial2, Jennifer M Questel3

  • 1NOAA Fisheries, Office of Science & Technology, Silver Spring, MD, USA.

Methods in Molecular Biology (Clifton, N.J.)
|April 29, 2024
PubMed
Summary

The MetaZooGene Atlas and Database (MZGdb) offers marine biodiversity data using DNA barcoding and metabarcoding. It provides gene sequences and mapping tools to explore marine life, aiding in classification and identification.

Keywords:
DNA barcodesMarine biodiversityMetaZooGeneReference database

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Area of Science:

  • Marine biology
  • Genomics
  • Bioinformatics

Background:

  • Marine ecosystems harbor vast biodiversity, crucial for global ecological balance.
  • Accurate identification and classification of marine organisms are essential for biodiversity assessment.
  • DNA barcoding and metabarcoding are powerful tools for marine species identification.

Purpose of the Study:

  • To introduce the MetaZooGene Atlas and Database (MZGdb) as a comprehensive resource for marine biodiversity data.
  • To provide access to curated DNA sequence data for marine organisms.
  • To support research in marine biodiversity, classification, and identification.

Main Methods:

  • The MZGdb integrates data from NCBI GenBank and BOLD.
  • It includes DNA sequences for key genes (COI, 12S, 16S rRNA, 18S, 28S rRNA).
  • Data and mapping tools are available for custom data compilation and analysis.

Main Results:

  • The MZGdb offers an open-access portal for marine DNA sequence data.
  • It covers diverse marine life, from microbes to marine vertebrates.
  • The Atlas feature provides insights into data coverage and completeness for different ocean regions.

Conclusions:

  • The MZGdb enhances the study of marine biodiversity through accessible, curated DNA sequence data.
  • It facilitates global research on marine zooplankton and other marine life.
  • The database serves as a vital reference for DNA-based identification and classification of marine organisms.