To examine the genetic diversity of Vitis vinifera L., growing in the region near the Caspian Sea of Azerbaijan Republic, nuclear genomes of 31 cultivated and 34 wild grapevine accessions were studied at population and individual levels using five ISSR primers. In total, 51 fragments were amplified, of which 45 were found to be polymorphic. A high level of polymorphism was revealed (the mean PPF and PIC values constituted 87.69% and 0.94, respectively). High values of the EMR, MI, and RP indices showed the effectiveness of the application of ISSR primers and the possibility of their use in further investigations in this direction. Cluster analysis based on Nei’s genetic distance values showed that all genotypes could be grouped into seven main clusters. Furthermore, no differences between the wild and cultivated grape wine accessions were revealed. For instance, there was no distinct distribution of the accessions according to their geographical localization. On the basis of the PIC values, the group of cultivars from Absheron Peninsula was distinguished by the highest polymorphism level (PIC = 0.36). Natural populations from the Guba and Shabran regions were characterized by a relatively low polymorphism level (PIC = 0.31 and PIC = 0.28, respectively), and a wild population from Nabran demonstrated the lowest polymorphism level (PIC = 0.25). The data obtained confirmed paleontological and historical data of different periods and provided the supposition that Azerbaijan was the center of diversity of V. vinifera L. In addition, our data indicate that Azerbaijan grape landraces originated from local wild forms.
Russian Journal of Genetics – Springer Journals
Published: May 19, 2016
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