Figure 1.
The O.mossambicus native range and location of the sampling localities (Changane-Lower Limpopo).
A. Native range of Oreochromis mossambicus (green area) and study area (red square). B. Locations of the 12 sampling localities in the Changane-Lower Limpopo- system (red circles). The black arrow points the zone of hydrological disconnection of the Banhine endorheic system from the Changane River mainstream.
Figure 2.
Distribution of mitochondrial haplotypes and AFLP genotypes in the Changane-Lower Limpopo system.
A. Pie charts of haplotype per species and individual correspondence of the haplotypes with the rest of the figure. B. structure barplot for K = 2 showing the assignment values of individuals from the 13 localities sampled in the Changane-Lower Limpopo- system. The first group is reference O. niloticus samples. C. Same plot obtained with newhybrid with two possible parental and four hybrid categories. Geographic locations are described in Figure 1.
Figure 3.
Networks of the two alien species haplotypes recovered in the Changane-Limpopo System.
A. Oreochromis niloticus and B. Oreochromis andersonii. Black circles represent unsampled haplotypes. Networks included haplotypes sampled in the Limpopo basin and previously published on GenBank. Geographic locations are described in Figure 1.
Table 1.
Sampled localities and summary statistics of genetic diversity.
Figure 4.
Network of Oreochromis mossambicus haplotypes sampled within the Changane-Lower Limpopo system.
Black circles represent unsampled haplotypes. Geographic locations are described in Figure 1.
Table 2.
Pairwise AFLP Fst comparisons within the O. mossambicus populations preserved from hybridization with alien Oreochromis species.