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Identification and genetic diversity analysis of date palm (Phoenix dactylifera L.) varieties from Morocco using RAPD markers

Euphytica volume 103, pages 75–82 (1998)Cite this article

Abstract

Genetic variation among 43 date palm (Phoenix dactylifera L.) accessions, including 37 accessions from Morocco and 6 cultivars from Iraq and Tunisia, was studied using Random Amplified Polymorphic DNA (RAPD) markers. The pre-screening of 123 primers on four genotypes allowed selection of 19 primers which revealed polymorphism and gave reproducible results. All 43 analysed genotypes were distinguishable by their band patterns. RAPD technology therefore appears very effective for identifying accessions of date palm. RAPD-based genetic distance was used to determine the relationships between the accessions. The grouping-association identified by cluster analysis was rather weak. However, morphologically similar varieties clustered together. A relatively low polymorphism and a lack of evident organisation are observed among the date palm varieties grown in Morocco. This could be related to the mode of introduction and maintenance of the Moroccan date palm germplasm involving limited foundation germplasm, exchange of cultivars between plantations, and periodic development of new recombinant cultivars following sexual reproduction.

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Authors
  1. My. Hassan Sedra
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  2. Philippe Lashermes
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  3. Pierre Trouslot
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  4. Marie-Christine Combes
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Sedra, M.H., Lashermes, P., Trouslot, P. et al. Identification and genetic diversity analysis of date palm (Phoenix dactylifera L.) varieties from Morocco using RAPD markers. Euphytica 103, 75–82 (1998). https://doi.org/10.1023/A:1018377827903

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