PJB-2019-439
GENETIC DIVERSITY OF SOME QUERCUS (FAGACEAE) AND THEIR PUTATIVE HYBRIDS IN TURKEY
Emel Uslu
Abstract
Interspesific hybridization is very common among oak species. This situation makes the hybridization between closely related parents possible. In this study, Inter-Simple Sequence Repeat (ISSR) method was used to identify and differentiate between twelve different white oaks to show their genetic diversity. Besides, the five putative hybrids which are morphologically indistinguishable were also used. ISSR markers produced a total of 90.85 % polymorphism with Quercus taxa and a total of 175 bands were revealed by 11 ISSR primers. The two statistical analysis software’s, Minitab and NTSYS-pc (Numerical Taxonomy and Multivariate Analysis System), were used to reveal variations between these white oaks. Both cluster analysis (CA) and principle component analysis (PCA) identified four groups among the studied taxa. The results of the two analyses are in correlation with each other. Putative hybrids are usually located between their presumed parents in the dendrogram and graphs. Consequently, this preliminary study showed that ISSR markers can be used with confidence for genetic diversity of white oaks. It can also be helpful for putative hybrids to some extent.
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