Molecular Genetic Characterization of the Turkish National Green Plum (Prunus cerasifera Ehrh.) Collection
Öz
Plum is an important fruit worldwide and has high nutritional value. Prunus cerasifera Ehrh., a type of European plum species, is very popular in Turkey and is usually eaten at the green, unripe stage. In this work for the first time, the genetic diversity and population structure of the 66 accessions housed in the Turkish National P. cerasifera collection were investigated using molecular markers. A total of 47 Sequence-Related Amplified Polymorphism (SRAP) primer pairs were used and found to be highly polymorphic with 98% of the 495 amplified alleles providing polymorphism. Average diversity of the accessions was 0.39 as determined using the dice coefficient and was similar to P. cerasifera germplasm from France, Iran and Belarus but higher than that from China. This difference was expected as Turkey, Iran and Belarus are within the geographical origin of this species which was distributed to Europe during ancient times. The genetic relationships among accessions of the germplasm collection were assessed using unweighted neighbor joining dendrogram and population structure analyses. The dendrogram and population structure results were strongly correlated as both methods clustered the material into two main groups with a much smaller third admixed group. The analysis also indicated that Can and Papaz types, despite their morphological differences are not genetically distinct and provides information about genetic relationships that can be used in future plum breeding.
Anahtar Kelimeler
Plum, Prunus cerasifera Ehrh., SRAP, national collection, fruit genetics, green plum diversity
Kaynakça
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