Abstract
Ziziphus jujuba (jujube) one of the well-known species of the ziziphus is medicinally important tree species that is also used as food source for its fruits. Conservation and breeding studies are in hand for this horticultural plant and for this reason a thorough population genetic study was performed. We carried out both molecular (Inter-retrotransposon amplified polymorphism: IRAP) and morphological (fruit characteristics) studies in 71 jujube trees collected randomly from 8 geographical regions in Iran. IRAP markers could differentiate the studied populations, as AMOVA revealed significant genetic difference among the studied populations. Networking and STRUCTURE analyses indicated that the jujube populations can be placed in two main genetic groups. Nm analysis revealed limited gene flow among populations. Jujube populations also differed significantly in their fruit characteristics and PCA analysis showed that these populations are diverged in these characters too. Data obtained can be used in future conservation and breeding studies of this important horticultural plant.
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