| General information |
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Parapteronotus hasemani (Ellis, 1913) |
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| Synonyms |
Sternarchus hasemani Ellis, 1913 Apteronotus hasemani (Ellis, 1913) Apteronotus anas Eigenmann & Allen, 1942 |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Gymnotiformes; Apteronotidae. |
| Geographical distribution |
Brazil; Peru |
| Occurrence |
native: Brazil; native: Peru |
| Importance |
Food |
| Karyological information |
| Geographical area of study |
Reserva de Desenvolvimento Sustentavel Mamiraua, Brazil |
| Source of chromosomes |
Not reported |
| Number of specimens with sex |
15 (10 males; 05 females) |
| Diploid chromosome number |
52 |
| Karyotype formula |
36m/sm+16st/a |
| Fundamental arm number |
88 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not detected |
| 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. |
| Reference |
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. |
| Cross Link |