Genetic diversity for RAPD markers between cultivated and wild accessions of Coffea arabica |
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| Authors: | P Lashermes P Trouslot F Anthony M C Combes A Charrier |
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| Institution: | (1) ORSTOM, 911 Av. Agropolis BP 5045, F-34032 Montpellier, France;(2) CATIE, 7170 Turrialba, Costa Rica |
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| Abstract: | Summary Random amplified polymorphic DNA (RAPD) markers have been successfully employed to analyse the genetic diversity among cultivated and subspontaneous accessions of Coffea arabica. The narrow genetic base of commercial cultivars was confirmed. On the other hand, a relatively large genetic diversity was observed within the germplasm collection demonstrating the importance of collecting missions. Results suggested an East-West differentiation in Ethiopia, the primary centre of diversification of C. arabica. The large heterosis effect reported in intergroup hybrids could be related to such genetic differentiation. RAPD method appeared to be effective in resolving genetic variations and in grouping germplasm in C. arabica. |
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| Keywords: | Coffea arabica coffee diversity genetic resources heterosis RAPD |
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