Backround:
Thanks to its ecological and geographical location, Turkey is the homeland of many fruit species and allows many fruit species to be grown. Hawthorn, which is understood to be important in human health and nutrition, is one of these fruit types. This study was carried out to identify morphological, biochemical and molecular genetic variations of 22 hawthorn genotypes belonging to three different species collected from Kayseri province.
Methods and Results:
Morphological, biochemical and molecular marker (ISSR) techniques were used to determine genetic diversity. The fruit and leaf characteristics of the genotypes showed differences. Among the biochemical properties of the genotypes, the antioxidant activity ranged from 23.13–61.59%, the total flavonoid content ranged from 16.63 to 57.22 mg QE/100 g, and the total phenolic content ranged from 277.28 to 310.80 mg GAE/100 g. Genotypes were compared with principal component analysis according to their morphological and biochemical characteristics. In the principal component analysis, species generally formed similar clusters. In molecular marker analysis, 101 bands were obtained from 13 ISSR primers. 76 of the bands are polymorphic and the polymorphism rate was calculated as 75.24%. The similarity index in the UPGMA dendogram obtained as a result of the molecular analysis ranged between 0.71 and 0.88. In the dendrogram, genotypes did not show a dense clustering by species.
Conclusion
The results obtained may benefit researchers in the determination and protection of gene sources in breeding studies on hawthorn species.