| General information |
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Semaprochilodus insignis (Jardine, 1841) (Jardine, 1841) |
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| Common name | Kissing prochilodus |
| Valid name |
Semaprochilodus insignis (Jardine, 1841) |
| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
- |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Prochilodontidae. |
| Geographical distribution |
- |
| Occurrence |
- |
| Importance |
Minor commercial; aquarium |
| Remarks |
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| Karyological information |
| Geographical area of study |
Confluence of the Negro/Solimo˜es Rivers (State of Amazonas, Brazil) and the Amazonas/ Tapajo´s Rivers (State of Para, Brazil). |
| Source of chromosomes |
Not reported |
| Number of specimens with sex |
10 (6 females and 4 males) |
| Diploid chromosome number |
54 |
| Karyotype formula |
40m + 14sm |
| Fundamental arm number |
Not reported |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
Constitutive heterochromatin was detected in the centromere region of most of the chromosomes. Heterochromatic block was also observed in the terminal regions of the first metacentric pair. The NOR was detected by silver staining (Ag-NOR) and the FISH technique (using the 18S rDNA probe) on the interstitial region of the short arm of the second metacentric chromosome pair. The 5S rDNA sites were located in the terminal region of the short arms of five chromosome pairs 2, 15, 17, 23, and 26. |
| Reference |
Terencio ML, Schneider CH, Gross MC, Vicari MR, Feldberg E (2012). Stable karyotypes: a general rule for the fish of the family Prochilodontidae? Hydrobiologia, 686: 147–156 |
| Cross Link |