Yazar "Agaoglu, Y. Sabit" seçeneğine göre listele

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    The Effects of the Polinator Grape Cultivar Kalecik Karasi on the Progeny Fertility of Some Grape Cultivars
    (Ankara Univ, Fac Agr, 2007) Karatas, Huseyin; Agaoglu, Y. Sabit
    In this research, germination rate of seeds and fruit set of F1 hybrids obtained by hybridization studies conducted on Italia, Muscat Hamburg, Papaz karasi, Narince and Riesling grape cultivars were pollinated with Kalecik karasi grape cultivar, was investigated. Among cultivars which were pollunated with Kalecik karasi grape cultivar, the highest fruit set ratio was obtained from Muscat Hamburg grape cultivar (38.0%) however the lowest fruit set ratio, was obtained from Riesling grape cultivar (18.0%). The highest germination rates of seeds achieved from Italia grape cultivar (43.3%). The lowest germination rates of seeds achieved from Papaz karasi (17.0%) cultivar. When seedling set ratios investigated among F, off springs that were obtained by hybridization studies, the highest seedling set ratios were obtained from Riesling (85.0%). However Ata sarisi grape cultivar had the lowest seedling set ratio (50.1%). Approximately, 232 F1 hybrid progenies were producted as a result of hybridizations.
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    Öğe
    Genetic diversity among Turkish local grape accessions (Vitis vinifera L.) using RAPD markers
    (Bmc, 2008) Karatas, Hueseyin; Agaoglu, Y. Sabit
    To estimate genetic relationships among 46 local grape cultivars, RAPD analysis was performed with 25 decamer primers selected from a total of 60 primers. Genetic relationships among these cultivars were determined by calculating similarity indexes, from which a dendogram was derived. There was high genetic variation among the cultivars, with values of genetic diversity ranging from 0.553 to 0.952 using the Jaccard coefficient. UPGMA analysis of a distance matrix produced a dendogram with six clusters. The relatively high genetic similarity ratios observed for the cultivars was also reflected in the dendogram. In general, no relationship was encountered between the genetic similarity ratios of the cultivars and the results of previous ampelographic analyses.
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    Öğe
    Microsatellite fingerprinting of homonymous grapevine (Vitis vinifera L.) varieties in neighboring regions of South-East Turkey
    (Elsevier, 2007) Karatas, Hueseyin; Degirmenci, Dilek; Velasco, Riccardo; Vezzulli, Silvia; Bodur, Cagri; Agaoglu, Y. Sabit
    Genotyping of Turkish grapevine (Vitis vinifera L.) germplasm was characterized by use of six highly polymorphic microsatellite loci (VVS2, VVMD5, VVMD7, VVMD27, VrZAG62, VrZAG79). In this study we aimed to clarify the relationships between homonymous varieties coming from different regions. Our results showed a large degree of genetic variability among most of the homonymous cultivars. The number of alleles per locus ranged from 10 to 21, and gene diversity (expected heterozygosity) values ranged from 0.85 to 0.93. Cultivars presenting the same names of Sergi karasi (sampled from Sanhurfa and Gaziantep), Yediveren (sampled from Sanhurfa, Gaziantep, and National Germplasm Repository Vineyard in Tekirdag) and Serpenekiran (sampled from Sanhurfa and Gaziantep) were clustered together, or very close to each other, in a phenogram. Moreover, the alleles at the six microsatellite loci analyzed were found to be similar in terms of base pairs within each of these three closely positioned varieties. However, all the other cultivars failed to show a suitable clustering pattern when comparing their DNA profiles and names. Similarly named cultivars were not generally grouped together in the phenogram. On the other hand, we detected a tendency for differently named homonymous grape cultivars to cluster together. (C) 2007 Elsevier B.V. All rights reserved.
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    Öğe
    Microsatellite fingerprinting of homonymous grapevine (Vitis vinifera L.) varieties in neighboring regions of South-East Turkey (vol 114, pg 164, 2007)
    (Elsevier Science Bv, 2008) Karatas, Hueseyin; Degirmenci, Dilek; Velasco, Riccardo; Vezzulli, Silvia; Bodur, Cagri; Agaoglu, Y. Sabit
    [Abstract Not Available]