From: Coexistence of diploid, triploid and tetraploid crucian carp (Carassius auratus) in natural waters
 |  | intraspecies | intergenus | intersubfamily | ||
---|---|---|---|---|---|---|
 |  | 2nCC (♂) | 3nCC (♂) | Common carp (♂) | BSB (♂) | Deactivated sperm |
2nCC (♀) | morphology | Like CC | death | hybrid | hybrid | death |
 | gonadal development | Normal, bisexual |  | delayed | delayed |  |
 | chromosome number | 100 |  | 100 | 148 |  |
3nCC (♀) | morphology | Like CC | Like CC | Like CC | Like CC | Like CC |
 | gonadal development | Normal, all-female | Normal, bisexual | Normal, all-female | Normal, all-female | Normal, all-female |
 | chromosome number | 150 | 150 | 150 200 | 150 | 150 |
4nCC (♀) | morphology | Like CC | Like CC | Like CC | Like CC | Like CC |
 | gonadal development | Normal, all-female | Normal, all-female | Normal, all-female | Normal, all-female | Normal, all-female |
 | chromosome number | 200 | 200 | 200 | 200 | 200 |