Yazar "Simsek, Ozhan" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • Küçük Resim
    Öğe
    Molecular and pomological diversity among pomegranate (Punica granatum L.) cultivars in Eastern Mediterranean region of Turkey
    (Academic Journals, 2008) Durgac, Coskun; Ozgen, Mustafa; Simsek, Ozhan; Kacar, Yildiz Aka; Kiyga, Yelda; Celebi, Semih; Gunduz, Kazim
    Pomegranate (Punica granatum L.) is an important fruit species for Turkey where many cultivars are being cultivated. In this study, we determined the fruit characteristics and RAPD band patterns of six local cultivars from Hatay, Turkey. Our results demonstrated that there is a great level of morphological variation. The principle component analysis of 18 quantitative fruit characteristics revealed that fruit weight, aril number/fruit, peel color and soluble solids/acidity ratio are important traits for discriminating the cultivars tested. The UPGMA cluster of fruit characteristics indicated that 'Katirbasi' and 'Kan nari' were similar to each other and they were separated from rest of the cultivars. Twenty-two RAPD primers generated total of 106 reproducible bands 22% of which were polymorphic. The UPGMA dendrogram of RAPD data showed that 'Tatli nar' and 'Serife' were very closely related while 'incekabuk' is distinct from the other cultivars. As a result, discrepancies were detected between morphological and molecular data. Therefore, we confirmed that diversity among the fruit characteristics were not good indication of genetic relatedness while molecular tools are valuable to study such similarities.
  • [ N/A ]
    Öğe
    Relationships among myrtle accessions from Turkey as revealed by fruit characteristics and RAPD
    (Ars Docendi, 2008) Serce, Sedat; Simsek, Ozhan; Gunduz, Kazim; Aka-Kacar, Yildiz; Ercisli, Sezai
    Myrtle, Myrtus communis L., is one of the most important and widespread shrubs (maquis) throughout the Mediterranean region. Its fruits ripen during the period of mid-fall to early winter and are generally dark-colored although while-colored wild forms rarely exist. In Turkey, both forms are present in addition to a while and large-fruited type, cultivated in small orchards and marketed locally. We studied two sets of myrtle accessions from Hatay, Turkey. Set I consisted of two wild accessions, dark- and white-colored forms, and six cultivated selections, while Set 2 contained three open-pollinated individuals from each accession of Set 1. We evaluated fruit characteristics of including fruit weight, width, length, soluble solids, pH and acidity. The accessions considerably differed in all the traits tested except for soluble solids. We also examined genotypic variation of Sets I and 2 using 26 RAPD primers and analyzed the data by cluster and principle components analyses. The results revealed that although some of the half-sib families (e.g., 8 a, b and c) were grouped based on their maternal parents, no overall pattern was apparent. These results suggest that myrtle pollination appeared to be not restricted to the self-pollination and the cultivated types have a narrow genetic base.