| General information |
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Thoracocharax stellatus (Kner, 1858) |
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| Common name | Spotfin hatchetfish, Papudinho |
| Synonyms |
Erythrinus salmoneus Gray, 1854 |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Gasteropelecidae. |
| Geographical distribution |
Brazil; Argentina; Colombia; Peru; Venezuela; Ecuador; Uruguay |
| Occurrence |
native: Brazil; native: Argentina; native: Colombia; native: Peru; native: Venezuela; native: Ecuador; native: Uruguay |
| Importance |
Food/Ornamental |
| Karyological information |
| Record 1 |
| Geographical area of study |
Paraguay basin; Cuiaba River;Sao Goncalo,SESC Barra do Bugres, Brazil |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
222 |
| Diploid chromosome number |
54 |
| Karyotype formula |
6m+6sm+2st+40a |
| Fundamental arm number |
68 |
| Chromosome length |
Not reported |
| Sex chromosome |
ZZ/ZW |
| Chromosome staining/banding/FISH |
Ag-NOR on 2 chromosome pairs; heterochromatic segments of sex chromosomes, as well as NOR presents bright signals through Chromomycin A3 treatment, indicating a GC rich regions |
| Reference |
Silva ELD, Borba RSD, Centofante L, Miyazawa CS, Parise-Maltempi PP (2012). Cytogenetic analysis in Thoracocharax stellatus (Kner, 1858) (Characiformes, Gasteropelecidae) from Paraguay River Basin, Mato Grosso, Brazil. Comparative Cytogenetics 6(3): 323-333. |
| Record 2 |
| Geographical area of study |
Paraguay basin, Cuiaba River - Sao Goncalo,Cuiaba River - SESC, Barra do Bugres, Brazil |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
111 |
| Diploid chromosome number |
54 |
| Karyotype formula |
6m+6sm+2st+40a |
| Fundamental arm number |
68 |
| Chromosome length |
Not reported |
| Sex chromosome |
ZZ/ZW |
| Chromosome staining/banding/FISH |
Not reported |
| Reference |
Silva ELD, Borba RSD, Centofante L, Miyazawa CS, Parise-Maltempi PP (2012). Cytogenetic analysis in Thoracocharax stellatus (Kner, 1858) (Characiformes, Gasteropelecidae) from Paraguay River Basin, Mato Grosso, Brazil. Comparative Cytogenetics 6(3): 323-333. |
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