Figure 1.
Map showing collection localities for each Characidium species.
Table 1.
Characidium species and populations analyzed.
Figure 2.
Metaphase chromosome spreads after C-banding.
a) C. gomesi (Alambari River), b) C. gomesi (Paranapanema River), c) C. pterostictum (Betari River), d) C. oiticicai (Paraitinguinha River). The scale bar equals 10 µm.
Table 2.
Proportion of individuals carrying B chromosomes (prevalence).
Figure 3.
Karyotypes of Characidium species after chromosome painting with the CgW, CpB, CgB and CoB probes and counterstained with DAPI.
m = Metacentric; sm = Submetacentric; a = Acrocentric.
Table 3.
Summary of in situ hybridisation experiments with the B and W chromosome probes.
Figure 4.
Consensus topology obtained by maximum likelihood and Bayesian analysis of the concatenated mtDNA dataset.
The two numbers over each node represent the percentage of bootstrap obtained by ML and the posterior probability for that split obtained in the Bayesian analysis, respectively. When one of these indices is equal to 100, it is replaced by an asterisk.