17th CHINA TO ADRIATIC TURKISH WORLD INTERNATIONAL SCIENTIFIC RESEARCH CONGRESS, Van, Türkiye, 5 - 07 Aralık 2025, ss.107-120, (Tam Metin Bildiri)
Melon (Cucumis melo L.), a prominent member of the Cucurbitaceae family, is one of the most widely
cultivated crops globally. Its broad native range has led to extensive genetic diversity. Among its
many varieties, the fragrant Pocket Melon (Cucumis melo spp. melo var. dudaim), known as Şamama
in Turkish, is a heritage treasure originating from the ancient lands extending from Turkey to
Afghanistan. This captivating melon variety, with its unique aroma and medicinal properties, has
intrigued scientists and growers for centuries. Its history dates back to the earliest civilizations, and
its uses are quite diverse. To understand its genetic differences and preserve emerging new varieties,
molecular studies are essential. This research morphologically analyzed Şamama genotypes collected
from various regions. In addition, it aimed to determine the genetic relationships between these
genotypes, some Şamama genotypes obtained from domestic and international sources, and other
widely grown melon varieties. This determination was based on both fruit characteristics and
molecular methods, such as iPBS. The Şamama genotypes studied showed a wide variation in fruit
weight, length, rind and flesh thickness, total soluble solids (TSS), and pH values. The morphological
data revealed significant differences among the genotypes in terms of marketability, consumer
preference, and local adaptation. Molecular analysis with iPBS markers yielded a total of 32
polymorphic bands, and the average polymorphic information content (PIC) was calculated as 0.416.
These results indicate that the Şamama genotypes possess a moderate level of genetic diversity, with
a high degree of concordance between their genetic structure and morphological traits. Cluster
analysis showed that the genotypes grouped according to their geographical origin, while some
samples distinctly separated, suggesting they represent potential genetic resources. Overall, the findings
demonstrate that the Şamama genotypes from the Lake Van Basin have rich genetic
diversity, highlighting their significant potential for both the conservation of genetic resources and
for use in future breeding programs.