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    AFLP analysis of genetic diversity in low chill requiring walnut (Juglans regia L.) genotypes from Hatay, Turkey
    (Elsevier Science Bv, 2007) Bayazit, S.; Kazan, K.; Gulbitti, S.; Cevik, V.; Ayanoglu, H.; Ergul, A.
    In this study, the genetic relatedness of 22 low chill requiring walnut genotypes adapted to the south east Mediterranean region of Turkey was analysed by amplified fragment length polymorphism (AFLP) markers. Relatively low level of genetic variation was detected among the genotypes examined by five AFLP primer combinations, suggesting that these walnut genotypes selected predominantly for their low chill requirement have relatively narrow genetic base. In addition, the geographical proximity of the genotypes analysed was not correlated with their level of genetic relatedness. These results have implications for walnut breeding and conservation. (c) 2006 Elsevier B.V All rights reserved.
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    AFLP analysis of genetic diversity in Turkish green plum accessions (Prunus cerasifera L.) adapted to the Mediterranean region
    (Elsevier Science Bv, 2007) Ayanoglu, H.; Bayazit, S.; Inan, G.; Bakir, M.; Akpinar, A. E.; Kazan, K.; Erguel, A.
    The Anatolian region of Turkey with many ecogeographical locations harbours a rich but genetically uncharacterized plum germplasm. in this study, the genetic diversity in economically important green plums (Prunus cerasifera) grown in the Mediterranean region of Turkey was assessed using the amplified fragment length polymorphism (AFLP) analysis. Overall, a relatively low genetic diversity with AFLP genetic similarity values ranging from 0.829 to 0.985 was found among the accessions studied. However, the majority of green plum genotypes derived from an ecologically distinct location within the Mediterranean region were more diverse genetically than those from other locations. In an effort to further characterize this germplasm, the same accessions were analyzed for a number of fruit quality traits. Overall, the results presented here provide useful information about the level of genetic diversity present among the previously uncharacterized plum accessions and identify germplasm that could be potentially superior to the currently cultivated plum genotypes in this plum growing region of Turkey. (C) 2007 Elsevier B.V. All rights reserved.