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Natural Variation in Arabidopsis thaliana as a Tool for Highlighting Differential Drought Responses

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  • Oumaya Bouchabke
  • Fengqi Chang
  • Matthieu Simon
  • Roger Voisin
  • Georges Pelletier
  • Mylène Durand-Tardif

Abstract

To test whether natural variation in Arabidopsis could be used to dissect out the genetic basis of responses to drought stress, we characterised a number of accessions. Most of the accessions belong to a core collection that was shown to maximise the genetic diversity captured for a given number of individual accessions in Arabidopsis thaliana. We measured total leaf area (TLA), Electrolyte Leakage (EL), Relative Water Content (RWC), and Cut Rosette Water Loss (CRWL) in control and mild water deficit conditions. A Principal Component Analysis revealed which traits explain most of the variation and showed that some accessions behave differently compared to the others in drought conditions, these included Ita-0, Cvi-0 and Shahdara. This study relied on genetic variation found naturally within the species, in which populations are assumed to be adapted to their environment. Overall, Arabidopsis thaliana showed interesting phenotypic variations in response to mild water deficit that can be exploited to identify genes and alleles important for this complex trait.

Suggested Citation

  • Oumaya Bouchabke & Fengqi Chang & Matthieu Simon & Roger Voisin & Georges Pelletier & Mylène Durand-Tardif, 2008. "Natural Variation in Arabidopsis thaliana as a Tool for Highlighting Differential Drought Responses," PLOS ONE, Public Library of Science, vol. 3(2), pages 1-8, February.
    • Handle: RePEc:plo:pone00:0001705
    DOI: 10.1371/journal.pone.0001705
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    Cited by:

    1. Srivathsa C Venugopal & Rae-Dong Jeong & Mihir K Mandal & Shifeng Zhu & A C Chandra-Shekara & Ye Xia & Matthew Hersh & Arnold J Stromberg & DuRoy Navarre & Aardra Kachroo & Pradeep Kachroo, 2009. "Enhanced Disease Susceptibility 1 and Salicylic Acid Act Redundantly to Regulate Resistance Gene-Mediated Signaling," PLOS Genetics, Public Library of Science, vol. 5(7), pages 1-18, July.
    2. Tiffany L. Fess & James B. Kotcon & Vagner A. Benedito, 2011. "Crop Breeding for Low Input Agriculture: A Sustainable Response to Feed a Growing World Population," Sustainability, MDPI, vol. 3(10), pages 1-31, October.

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