Cytogenetic studies in Hasemania crenuchoides (Characiformes: Characidae) and molecular investigations into kinship relationships of the genus

Figures & data

Figure 1. Hasemania crenuchoides karyotype. (a) Karyotype of the female (2n = 50) with conventional Giemsa staining. Chromosome pair 6 shown with Ag-NOR marking. (b) Karyotype of the male (2n = 50) with conventional Giemsa staining. (c) Karyotype of the female submitted to C-banding. (d) Karyotype of the female with DAPI staining.

Table 1. Pairwise p-distance in black and standard error in blue for the COI gene.

Hasemania uberaba		0.010	0.010	0.009	0.018	0.017	0.018	0.017
Hasemania crenuchoides 1	0.045		0.000	0.011	0.018	0.017	0.018	0.017
Hasemania crenuchoides 2	0.045	0.000		0.011	0.018	0.017	0.018	0.017
Hasemania kalunga	0.043	0.062	0.062		0.017	0.016	0.018	0.016
Hemigrammus marginatus	0.178	0.193	0.193	0.178		0.017	0.013	0.016
Hasemania hanseni	0.143	0.161	0.161	0.141	0.148		0.018	0.012
Hasemania erythrozonus	0.184	0.199	0.199	0.191	0.077	0.161		0.016
Hasemania nana	0.146	0.152	0.152	0.139	0.137	0.079	0.139

Figure 2. Phylogenetic tree drawn up from analyses of maximum likelihood and neighbor-joining of 467 bp in the 5ʹ region of the COI gene belonging to eight specimens. The values to the left of the nodes correspond to the bootstrap values obtained by ML and those to the right, to the NJ.