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Potyviruses and the digital revolution.

Adrian Gibbs1, Kazusato Ohshima

  • 1Emeritus Faculty, Australian National University, Canberra, ACT 0200, Australia. adrian_j_gibbs@hotmail.com

Annual Review of Phytopathology
|May 5, 2010
PubMed
Summary

Potyviruses, a diverse plant virus group, likely originated from monocot plant viruses around 7250 years ago. This study uses gene sequencing and computational tools to explore their origins and evolution.

Area of Science:

  • Virology
  • Plant Pathology
  • Evolutionary Biology
  • Bioinformatics

Background:

  • Potyviruses represent one of the most diverse genera of plant viruses.
  • Understanding their diversity and origins is crucial for plant health and agricultural productivity.
  • Advancements in computational biology and internet resources have significantly enhanced research in this area.

Purpose of the Study:

  • To review and present an expanded understanding of potyvirus diversity and origins.
  • To establish a robust phylogeny for potyviruses based on gene sequence data.
  • To illustrate the application of computational tools in analyzing potyvirus population structure and evolution.

Main Methods:

  • Phylogenetic analysis using gene sequence data from approximately half of the named potyvirus species.

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  • Application of computer programs for analyzing viral population structure and evolutionary trajectories.
  • Literature review of existing research on potyvirus diversity and origins.
  • Main Results:

    • A fully supported phylogeny for a significant portion of potyvirus species was generated.
    • The genus Potyvirus likely originated from a virus infecting monocotyledonous plants.
    • The estimated divergence time for the genus is approximately 7250 years ago, with origins in Southwest Eurasia or North Africa.

    Conclusions:

    • The study provides a comprehensive phylogenetic framework for understanding potyvirus evolution.
    • Recommendations are proposed for enhancing potyvirus nomenclature and improving information management through better databasing.
    • Continued use of computational approaches is vital for future potyvirus research.