Table 1.
Chromosomal data in analyzed Ancistrus species.
| Species/basin | 2n | Karyotypic formulae | FN | SC | rDNA synteny |
|---|---|---|---|---|---|
| Paraguay basin | |||||
| Ancistrus claro | 54 | 14m+8sm+8st+24a | 84 | - | Present |
| Ancistrus sp. 04 | 52 | 16m+8sm+6st+22a | 82 | - | Absent |
| Ancistrus sp. 08 | 44 | 18m+10sm+8st+8a | 80 | ZZ/ZW | Present |
| Ancistrus cf. dubius | 42 | 24m+10sm+8st | 84 | XX/XY | Present |
| Ancistrus cuiabae | 34 | 20m+8sm+6st | 68 | - | Absent |
| Araguaia–Tocantins basin | |||||
| Ancistrus sp. 13 | 40 | 26 m+10sm+4st | 80 | - | Absent |
| Amazon basin | |||||
| Ancistrus sp. 06 | 50 | 18m+10sm+8st+14a | 86 | - | Present |