Genetic Resources and Crop Evolution

, Volume 54, Issue 6, pp 1267–1283

Diversity among landraces of Indian snapmelon (Cucumis melo var. momordica)

  • N. P. S. Dhillon
  •  R. Ranjana
  • Kuldeep Singh
  • I. Eduardo
  • A. J. Monforte
  • M. Pitrat
  • N. K. Dhillon
  • P. P. Singh
Original Paper

DOI: 10.1007/s10722-006-9108-2

Cite this article as:
Dhillon, N.P.S., Ranjana,  ., Singh, K. et al. Genet Resour Crop Evol (2007) 54: 1267. doi:10.1007/s10722-006-9108-2

Abstract

Diversity among 36 snapmelon landraces, collected from 2 agro-ecological regions of India (9 agro-climatic sub-regions), was assayed using RAPD primers, morphological traits of plant habit and fruit, 2 yield-associated traits, pest and disease resistance and biochemical composition (TSS, ascorbic acid, titrable acidity). Typical differences among accessions were observed in plant and fruit characteristics and snapmelon germplasm with high titrable acidity and possessing resistance to downy mildew, Cucumber mosaic virus, Zucchini yellow mosaic virus, Papaya ringspot virus, Aphis gossypii and Meloidogyne incognita was noticed in the collection. RAPD based grouping analysis revealed that Indian snapmelon was rich in genetic variation and region and sub-region approach should be followed across India for acquisition of additional melon landraces. Accessions of var. agrestis and var. momordica clustered together and there was a separate cluster of the accessions of var. reticulatus. Comparative analysis of the genetic variability among Indian snapmelons and an array of previously characterized reference accessions of melon from Spain, Israel, Korea, Japan, Maldives, Iraq, Pakistan and India using SSRs showed that Indian snapmelon germplasm contained a high degree of unique genetic variability which was needed to be preserved to broaden the genetic base of melon germplasm available with the scientific community.

Keywords

Cucumis meloDNA markersGenetic diversityLandracesTaxonomic relationships

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • N. P. S. Dhillon
    • 1
  •  R. Ranjana
    • 1
  • Kuldeep Singh
    • 2
  • I. Eduardo
    • 3
  • A. J. Monforte
    • 3
  • M. Pitrat
    • 4
  • N. K. Dhillon
    • 5
  • P. P. Singh
    • 5
  1. 1.Department of Vegetable CropsPunjab Agricultural UniversityLudhianaIndia
  2. 2.Department of Plant Breeding, Genetics and BiotechnologyPunjab Agricultural UniversityLudhianaIndia
  3. 3.Department Genética VegetalLaboratori de Genètica Molecular Vegetal CSIC-IRTACabrilsSpain
  4. 4.INRAStation de Génétique et d’Amélioration des Fruits et LégumesMontfavet CedexFrance
  5. 5.Department of Plant PathologyPunjab Agricultural UniversityLudhianaIndia