Summary
We have applied the recently developed technique of random amplification of polymorphic DNA (RAPD) to the analysis of the relationships among ten cultivars of papaya (Carica papaya L.). Eleven ten-base synthetic oligonucleotides were chosen that gave multiple PCR amplification products using papaya DNA as template. These 11 primers amplified a total of 102 distinct fragments. Cultivars were scored for presence or absence of RAPD fragments and grouped by cluster analysis using simple matching coefficients of similarity. A dendrogram of the ten cultivars was constructed. Of the ten cultivars seven were of the Hawaiian type, and all of these grouped to one branch of the tree. Divisions within the Hawaiian, branch were mostly consistent with the known genetic background of these cultivars. Three non-Hawaiian, cultivars were also analyzed. The minimum similarity detected was 0.7 suggesting that the domesticated papaya germ plasm is quite narrow. Our results show that RAPD technology is a rapid, precise and sensitive technique for genomic analysis.
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Communicated by G. Wenzel
Journal series No. 3692 of the Hawaii Institute of Tropical Agriculture and Human Resources
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Stiles, J.I., Lemme, C., Sondur, S. et al. Using randomly amplified polymorphic DNA for evaluating genetic relationships among papaya cultivars. Theoret. Appl. Genetics 85, 697–701 (1993). https://doi.org/10.1007/BF00225007
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DOI: https://doi.org/10.1007/BF00225007