Genetic diversity analysis of some Vaccinium species in the Black Sea region of Türkiye using iPBS markers.

This article focuses on the genetic diversity, population structure, and gene flow of wild Vaccinium species in Türkiye's Black Sea region, analyzed using inter Primer Binding Site (iPBS) retrotransposon markers. The study examined 22 individuals from three wild species—Vaccinium arctostaphylos, V. myrtillus, and V. uliginosum—and two domesticated Vaccinium corymbosum cultivars, revealing moderate polymorphism (56%) but overall low genetic diversity and moderate gene flow among populations. Cluster, principal coordinate, and Bayesian STRUCTURE analyses identified distinct species clusters with some individuals showing admixture, suggesting hybridization events within the genus. These findings provide valuable insights for conservation strategies and breeding programs aimed at preserving genetic resources and enhancing berry cultivation under changing environmental conditions.