Determination of Genetic Diversity of Vitis vinifera cv. Kabarcik Populations from the Coruh Valley Using SSR Markers
2012
Agar, Guleray | Yildirim, Nalan | Ercisli, Sezai | Ergul, Ali | Yuksel, Canan
Northeastern Turkey is recognized as one of the most important germplasm centers for the grape in the world. In the present study, simple sequence repeat markers were used to investigate the genetic diversity between four Vitis vinifera cv. Kabarcik populations sampled from the Coruh Valley in Turkey, at altitudes of 800–1,150 m. The mean observed number of alleles per locus varied from 2 (loci VVMD7 and VVMD24) to 6 (VVS2) among populations. The population from the highest altitude showed the greatest average number of alleles, 4.5. With regard to the six loci examined in all populations, the mean observed heterozygosity was higher than the expected heterozygosity. Among the loci, VVS2 (probability of identity = 0.137) was found to be the most informative among populations. Genetic distances between populations ranged from 0.072 to 0.216. Genetic differentiation among populations was strongly related to geographic distances in all populations.
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