Fig. 4

Membership probabilities of sampled individuals. Individual membership probabilities to six putative ancestral genetic groups of 655 individuals from the 18 sympatric and allopatric populations in Germany, Sweden, Poland, Finland and Russia, as obtained by the R-package LEA. Columns represent individuals and the different colors within each column represent the probability of membership of that individual to one of the six groups suggested by the cross-entropy criterion K. The numbers above the groups of columns represent the populations: 1 = Lake Stechlin C. albula, 2 = Lake Stechlin C. fontanae, 3 = Lake Breiter Luzin C. albula, 4 = Lake Breiter Luzin C. lucinensis, 5 = Lake Fegen C. albula autumn-spawner, 6 = Lake Fegen C. albula spring-spawner, 7 = C. albula Lake Stora Hålsjön, 8 = C. albula Lake Åsnen, 9 = C. albula Baltic Sea near Kalix, 10 = C. albula Lake Vättern, 11 = C. albula Lake Ińsko, 12 = C. albula Lake Miedwie, 13 = C. albula Lake Siecino, 14 = C. albula Lake Oulujärvi, 15 = C. albula Lake Jerisjärvi, 16 = C. albula Lake Puruvesi, 17 = C. sardinella Yenisei River, 18 = C. maraena Lake Bolmen