Abstract
The genetic relationships among 56 melon (Cucumis melo L.) genotypes collected from various parts of Turkey were determined by comparing their phenotypic and molecular traits with those of 23 local and foreign melon genotypes to investigate the taxonomic relationships and genetic variation of Turkish melon germplasm. Sixty-one phenotypic characters and 109 polymorphic RAPD markers obtained from 33 primers were used to define the genetic similarity among the melon genotypes by dendrograms or two and three dimensional scaling. There were high correlations (r ≥ 0.97) among the four resulting matrices used in molecular characterization. The correlations between phenotypic (Euclidean) and molecular Euclidean, Jaccard, Simple matching, and Nei analyses were r = 0.41, r = −0.40, r = −0.43 and r = −0.40, respectively. Related genotypes or genotypes collected from similar regions were partitioned to similar clusters. Both analyses (phenotypic and molecular) indicated that non-sweet melon types were dissimilar from sweet types and diversity of Turkish melon genotypes was higher than that of sweet foreign cultivars examined, but similar to that of the reference accessions employed. It was also observed that sweet Turkish melon genotypes belonging to groups inodorus and group cantalupensis were highly variable and could have intermated or have crossed with other non-sweet types.
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Acknowledgments
The authors express gratitude to Dr. Maria L. Gomez-Guillamon, Dr. Rafael Perl-Treves, Dr. Michel Pitrat, Dr. Nebahat Sari and Dr. Jack E. Staub for providing seed samples and advice; and to Dr. Bunyamin Sogut and Dr. Murat Sipahioglu for providing lab facilities. This research was supported in part by grants from the Scientific and Technical Research Council of Turkey, Ankara (Project No. TUBITAK/TOGTAG-3055), the Scientific Projects Council of Yuzuncu Yıl University in Van, Turkey (Project No. 2003-YYU-ZF-009) and the Scientific Projects Council of Cukurova University in Adana, Turkey (Project No. KAP-2002-ZF-49), supporting the Ph.D. thesis of Suat Sensoy.
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Sensoy, S., Büyükalaca, S. & Abak, K. Evaluation of genetic diversity in Turkish melons (Cucumis melo L.) based on phenotypic characters and RAPD markers. Genet Resour Crop Evol 54, 1351–1365 (2007). https://doi.org/10.1007/s10722-006-9120-6
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DOI: https://doi.org/10.1007/s10722-006-9120-6