| General information |
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Megalonema platanum (Gunther, 1880) |
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| Common name | Jundiá-branco |
| Synonyms |
Pimelodus platanus Gunther, 1880 Megalonema platanus (Gunther, 1880) |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Pimelodidae. |
| Geographical distribution |
Brazil; Argentina; Peru; Uruguay |
| Occurrence |
native: Brazil; native: Argentina; misidentification: Peru; native: Uruguay |
| Karyological information |
| Geographical area of study |
Rio Tibagi, Parana State, Brazil; RÃo Parana, Argentina; Corrientes/Corrientes; Yahape/Corrientes; Ita Ibaté/Corrientes, Argentina |
| Source of chromosomes |
Not reported |
| Number of specimens with sex |
12 (males-03, females-09) |
| Diploid chromosome number |
54 |
| Karyotype formula |
24m+16sm+2st+12a |
| Fundamental arm number |
94 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
Ag-NORs sites were detected terminally on submetacentric pair 15, which was confirmed by CMA3 and FISH with 18S rDNA probe; Heterochromatic blocks were evident in the terminal position of some chromosome pairs and interstitially on a large submetacentric chromosome pair |
| Reference |
Carvalho RAD, Sanchez S, Swarça AC, Fenocchio AS, Martins-Santos IC, Dias AL (2011). Chromosomal analyses in Megalonema platanum (Siluriformes: Pimelodidae), an endangered species from South American rivers. Neotropical Ichthyology, 9(1): 177-182. |
| Cross Link |