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Marine phage genomics.

John H Paul1, Matthew B Sullivan, Anca M Segall

  • 1College of Marine Sciences, University of South Florida, 140 Seventh Ave S, St Petersburg, FL 33701, USA. jpaul@seas.marine.usf.edu

Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
|December 10, 2002
PubMed
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Marine phages, the ocean's most abundant life, are key to carbon cycling and gene transfer. Studying their genomes reveals vast diversity and adaptation to environmental changes.

Area of Science:

  • Marine microbiology
  • Virology
  • Oceanography

Background:

  • Marine phages are the most abundant biological entities in the oceans.
  • They play crucial roles in marine ecosystems, including carbon cycling, gene transfer (transduction), and host modification (lysogeny).

Purpose of the Study:

  • To explore the diversity and physiological potential of marine phage communities.
  • To understand the evolutionary relationships and adaptive responses of marine phages and their hosts.

Main Methods:

  • Genomic sequencing of marine phages.
  • Analysis of prophages within marine bacterial genomes.
  • Partial sequencing of uncultivated phages.

Main Results:

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  • Genomic data reveals the immense diversity and physiological capabilities of marine phages.
  • Identification of common gene modules across diverse phages facilitates evolutionary comparisons.
  • Deciphering phage genomes provides insights into host-phage adaptive responses to environmental cues.

    • Conclusions:

    • Marine phage genomes are essential for understanding marine microbial ecology and evolution.
    • Continued genomic studies will illuminate phage roles in biogeochemical cycles and host adaptation.