General information |
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| Parapteronotus hasemani (Ellis, 1913) | ||
| Synonyms |
Sternarchus hasemani Ellis, 1913 Apteronotus hasemani (Ellis, 1913) Apteronotus anas Eigenmann & Allen, 1942 |
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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; Gymnotiformes; Apteronotidae. |
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| Geographical distribution | Brazil; Peru |
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| Occurrence | Native: Brazil, Peru |
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| Importance | Food |
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| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Reserva de Desenvolvimento Sustentavel Mamiraua, Brazil | |
| Source of chromosomes | Not reported |
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| Number of specimens with sex | 15 (10 males; 05 females) |
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| Diploid chromosome number | 52 |
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| Karyotype formula | 36m/sm+16st/a |
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| Fundamental arm number | 88 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not detected |
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| Chromosome staining/banding/FISH | C-banding showed the presence of constitutive heterochromatin (CH) was observed in the centromeric regions of all chromosomes, a NOR was found on the distal short arm of pair 3 that was confirmed by DAPI and chromomycin A3 staining and FISH with 18S rDNA probes. |
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| Reference(s) |
Silva FHR, Pieczarka JC, Cardoso AL, Silva PCD, Oliveira JA, Nagamachi CY (2014).Chromosomal diversity in three species of electric fish (Apteronotidae, Gymnotiformes) from the Amazon Basin.Genetics and Molecular Biology, 37(4):638-645. |
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