General information |
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| Parodon tortuosus Eigenmann & Norris, 1900 | ||
| Common name | Canivete | |
| Valid name | Parodon nasus Kner, 1859 | |
| Synonyms |
Parodon tortuosus Eigenmann & Norris, 1900 Parodon tortuosus tortuosus Eigenmann & Norris, 1900 Parodon gestri Boulenger, 1902 Apareiodon pirassunungae Amaral Campos, 1945 Parodon tortuosus Eigenmann & Norris, 1900 Parodon tortuosus tortuosus Eigenmann & Norris, 1900 Parodon gestri Boulenger, 1902 Apareiodon pirassunungae Amaral Campos, 1945 |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Freshwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Parodontidae. |
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| Geographical distribution | Brazil; Argentina |
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| Occurrence | Native: Brazil, Argentina |
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| Importance | ||
| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Cuiabá River (Paraguay River basin), Brazil. | |
| Source of chromosomes | ||
| Number of specimens with sex | 22 (8 males and 14 females) |
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| Diploid chromosome number | 54 |
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| Karyotype formula | 48 M/SM+ 6ST |
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| Fundamental arm number | 108 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| Chromosome staining/banding/FISH | C-banding showed conspicuous pericentromeric bands on chromosome pairs 4, 5, 16 and telomeric blocks on pairs 1, 6, 17, 25, 26 and 27. A single NOR pair observed on the long arms of chromosome pair 25, which was confirmed by FISH with 18S rDNA probe. |
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| Reference(s) |
Bellafronte E, Margarido VP, Moreira-Filho O (2005). Cytotaxonomy of Parodon nasus and Parodon tortuosus (Pisces, Characiformes). A case of synonymy confirmed by cytogenetic analyses. Genetics and Molecular Biology, 28 (4): 710-716.
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