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Related Experiment Videos

Populus: arabidopsis for forestry. Do we need a model tree?

Gail Taylor1

  • 1School of Biological Sciences, University of Southampton, Bassett Crescent East, Southampton SO16 7PX, UK. g.taylor@soton.ac.uk

Annals of Botany
|November 27, 2002
PubMed
Summary

Populus is emerging as a crucial model woody plant for research, complementing Arabidopsis. Its rapid growth, sequenced genome, and commercial value make it ideal for accelerating tree domestication and understanding key biological processes.

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Area of Science:

  • Plant Science
  • Genomics
  • Forestry

Background:

  • Trees provide timber, paper, and renewable energy, with potential for carbon mitigation.
  • Tree domestication lags behind food crops due to long generation times and complex growth.
  • A model woody plant is needed to accelerate domestication and study unique processes like dormancy and wood formation.

Purpose of the Study:

  • To establish Populus as a model woody plant.
  • To complement genetic studies in Arabidopsis.
  • To facilitate research in tree biology, breeding, and physiology.

Main Methods:

  • Sequencing the Populus genome.
  • Developing molecular genetic maps.
  • Utilizing ease of genetic transformation and vegetative propagation.

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  • Leveraging large expressed sequence tagged collections and microarray analysis.

    • Main Results:

    • Populus is the first woody plant to undergo genome sequencing.
    • It possesses a relatively small genome size and numerous genetic maps.
    • Vegetative propagation enables immortal mapping populations and clonal material production.
    • Hybridization is routine, offering advantages for genetic studies.

    Conclusions:

    • Populus is rapidly becoming the accepted model woody plant.
    • Its characteristics facilitate research in dormancy, secondary wood formation, and domestication.
    • Populus offers significant commercial value in timber, pulp, and paper industries.
    • It is an ideal subject for breeders, physiologists, biochemists, and molecular biologists.