Genetic Diversity of Perca fluviatilis Across Turkish Lakes and Dams

This study aimed to investigate the genetic diversity, phylogenetic relationships, and oxidative stress responses of Perca fluviatilis populations collected from 12 lakes and dams across different regions of Turkey. Molecular characterization was performed using four ISSR markers, yielding 100 scorable bands, 68% of which were polymorphic. Cluster analyses (UPGMA) and Principal Component Analysis (PCA) revealed three main genetic groups, with the Adana population showing significant isolation and genetic differentiation from other populations. Mitochondrial DNA analyses targeting ATP6 and cytb gene regions confirmed species identity and demonstrated limited intraspecific variation, while closely related species (P. schrenkii and P. flavescens) formed distinct clades. Overall, this study provides comprehensive insights into the genetic and physiological diversity of P. fluviatilis populations in Turkey and emphasizes the importance of combined molecular approaches for sustainable management and conservation of perch fish populations.