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Theoretical and Applied Genetics

, Volume 102, Issue 5, pp 741–750 | Cite as

Evaluation of genetic distances between pepper inbred lines for cultivar protection purposes: comparison of AFLP, RAPD and phenotypic data

  • V. Lefebvre
  • B. Goffinet
  • J. C. Chauvet
  • B. Caromel
  • P. Signoret
  • R. Brand
  • A. Palloix
Original Article

Summary 

We evaluated concordance of AFLP and RAPD markers for estimating genetic distances of 47 pepper inbred lines belonging to five varietal types. It enabled us to see the efficiency of these markers for identification, estimation of distances between varieties and variety discrimination. Genetic distance and multidimensional scaling results showed a general agreement between AFLP and RAPD markers. Based on pattern scores, dendrograms were produced by the UPGMA method. Phenetic trees based on molecular data were consistent with the classification of variety group. The precision of the estimation of the genetic distance was given. The molecular genetic distances were correlated with distances based on a set of discriminating agronomic traits measured for identification and distinctiveness tests. The relationship between molecular and morphological distances appeared to be triangular. These results and their implications in the cultivar protection purposes of pepper hybrids are discussed.

Keywords Capsicum annuum Agronomic trait Molecular marker Genetic distance index 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • V. Lefebvre
    • 1
  • B. Goffinet
    • 2
  • J. C. Chauvet
    • 1
  • B. Caromel
    • 1
  • P. Signoret
    • 3
  • R. Brand
    • 3
  • A. Palloix
    • 1
  1. 1.INRA, Génétique et Amélioration des Fruits et Légumes, BP94, 84143 Montfavet cedex, France e-mail: veronique.lefebvre@avignon.inra.frFR
  2. 2.INRA, Biométrie et Intelligence Artificielle, BP27, 31326 Castanet Tolosan cedex, FranceFR
  3. 3.GEVES, BP1, 84300 Les Vignères, FranceFR

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