General information |
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| Megalonema platanum (Gunther, 1880) | ||
| Common name | Jundiá-branco | |
| Synonyms |
Pimelodus platanus Gunther, 1880 Megalonema platanus (Gunther, 1880) |
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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; Siluriformes; Pimelodidae. |
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| Geographical distribution | Brazil; Argentina; Peru; Uruguay |
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| Occurrence | Native: Brazil, Argentina, Uruguay Misidentification: Peru |
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| Importance | ||
| Remarks | Nil |
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Karyological information |
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| 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 |
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| Number of specimens with sex | 12 (males-03, females-09) |
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| Diploid chromosome number | 54 |
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| Karyotype formula | 24m+16sm+2st+12a |
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| Fundamental arm number | 94 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| 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 |
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| Reference(s) |
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. |
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