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A procedure for the clustering of cell wall mutants in the model plant Arabidopsis based on Fourier-transform infrared (FT-IR) spectroscopy

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  • S. Robin
  • M. Lecomte
  • H. Hofte
  • G. Mouille

Abstract

FT-IR microspectroscopy can be used to study the global composition and architecture of plant cell walls and it allows cell wall mutants to be identified. Our aim is to define a distance between cell wall mutants in the model species Arabidopsis based on FT-IR spectra. Since the number of data points that constitute a spectrum exceeds the number of samples analysed, it is essential to reduce first the dimension of the dataset. We present a comparison of several compression methods, including linear discriminant analysis using a non-canonical covariance matrix. The calculated distances were used to define clusters of mutants that appeared to be biologically meaningful.

Suggested Citation

  • S. Robin & M. Lecomte & H. Hofte & G. Mouille, 2003. "A procedure for the clustering of cell wall mutants in the model plant Arabidopsis based on Fourier-transform infrared (FT-IR) spectroscopy," Journal of Applied Statistics, Taylor & Francis Journals, vol. 30(6), pages 669-681.
    • Handle: RePEc:taf:japsta:v:30:y:2003:i:6:p:669-681
    DOI: 10.1080/0266476032000053745
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    References listed on IDEAS

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    1. W. J. Krzanowski & P. Jonathan & W. V. McCarthy & M. R. Thomas, 1995. "Discriminant Analysis with Singular Covariance Matrices: Methods and Applications to Spectroscopic Data," Journal of the Royal Statistical Society Series C, Royal Statistical Society, vol. 44(1), pages 101-115, March.
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