Introgressive hybridization levels of Tilapiine species in Lake Victoria basin, Kenya inferred from microsatellite and mitochondrial DNA genotyping based on next-generation sequencing

Abstract Despite their high abundance and species richness, tilapiines have been compromised by various factors especially overfishing, climate change, uncontrolled fish transfers introductions. Fish introductions negatively impacted native tilapiine populations through competition, predation, hybridization, introgression compromising genetic integrity. The hybridization levels of different in the Lake Victoria basin remain relatively understudied. study utilized nuclear microsatellite mitochondrial DNA (mtDNA) markers to investigate signals compare diversity Victoria, Kenya, using next-generation sequencing. Low from Oreochromis niloticus into other were detected Bayesian clustering analysis principal coordinate (PCoA). results contribute need for conservation measures these species.