Geographical locations of strains by hatcheries. Cities marked with different colors indicate the hatcheries from which the individuals were collected. Debrecen: Fish Biology Laboratory, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen (Hajdúszoboszló scaly, Szeged scaly); Hortobágy: Hatchery of Hortobágy cPlc. (Hortobágy mirror, Hortobágy scaly, Hortobágy wild); Tiszaszentimre: CLARIAS Agriculture, Producer and Trade Lp. (Böszörmény mirror); Hajdúszoboszló: Bocskai Fishing Ltd. (Hajdúszoboszló mirror); Biharugra: Hatchery of Biharugra Ltd. (Biharugra mirror, Biharugra scaly); Szarvas: Department of Fish Biology, National Agricultural Research and Innovation Centre, Research Institute for Fisheries and Aquaculture (Amur wild carp, Szarvas-15, Szarvas P3, Szeged mirror, Tata scaly).