Table 1.
Cytogenetic data and presence of B chromosomes in the Hyphessobrycon genus.
| Species | 2n | Karyotype formulae | Presence of Bs | References |
|---|---|---|---|---|
| Hyphessobrycon minor | 52 | 14m+20sm+16st | – | Arefjev (1989) |
| Hyphessobrycon scholzei | 50 | 8m+20sm+8st+14a | – | Arefjev (1990) |
| Hyphessobrycon flammeus | 52 | 18m/sm+32st+2a | – | Arefjev (1990) |
| Hyphessobrycon herbertaxelrodi | 52 | 10m/sm+42st/a | – | Arefjev (1990) |
| Hyphessobrycon reticulatus | 50 | 20m+14sm+16st/a | – | Wlasiuk and Garcia (1996) |
| Hyphessobrycon bifasciatus | 50 | 16m+10sm+12st+12a | – | Miyazawa (1997) |
| Hyphessobrycon aff. santae | 50 | 12m+10sm+10st+18a | – | Miyazawa (1997) |
| Hyphessobrycon reticulatus | 50 | 14m+20sm+16st | – | Carvalho et al. (2002a) |
| Hyphessobrycon reticulatus | 50 | - | – | Carvalho et al. (2002b) |
| Hyphessobrycon griemi | 48 | - | – | Carvalho et al. (2002b) |
| Hyphessobrycon anisitsi | 50 | 6m+16sm+12st+16a | – | Centofante et al. (2003) |
| Hyphessobrycon anisitsi | 50 | 18m+10sm+6st+16a | – | Mendes et al. (2011) |
| Hyphessobrycon luetkenii | 50 | 6m+8sm+36a | – | Mendes et al. (2011) |
| Hyphessobrycon eques | 52 | 14m+16sm+4st+18a | – | Martinez et al. (2012) |
| Hyphessobrycon eques | 52 | 12m+18sm+8st+14a | 0–1♀/0♂ | Present study |