| General information |
|
Hemisorubim platyrhynchos (Valenciennes, 1840) |
|
| |
|
| Common name | Porthole shovelnose catfish, Bico de pato |
| Synonyms |
Platystoma platyrhynchos Valenciennes, 1840 Hemisorubim platyrhynchus (Valenciennes, 1840) |
| 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; Colombia; Peru; Venezuela; Ecuador; Uruguay; Guyana; Suriname; French Guiana |
| Occurrence |
native: Brazil; native: Argentina; native: Colombia; native: Peru; native: Venezuela; native: Ecuador; questionable: Uruguay; native: Guyana; native: Suriname; native: French Guiana |
| Karyological information |
| Geographical area of study |
Parana River, Corrientes State, Argentina; Miranda River, Mato Grosso do Sul State, Brazil |
| Source of chromosomes |
Blood culture |
| Number of specimens with sex |
15 (males-08; females-05; undetermined- 02) |
| Diploid chromosome number |
56 |
| Karyotype formula |
22m+16sm+10st+8a |
| Fundamental arm number |
94 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
AgNORs were located terminally on the short arm of a subtelocentric pair that was confirmed by CMA3 and FISH with 18S rDNA probes. C- banding and RE (AluI) banding revealed small amount of heterochromatin in chromosomes. |
| Reference |
Swarca AC, Sanchez S, Dias AL, Fenocchio AS (2013). Cytogenetics of the Porthole Shovelnose Catfish,
Hemisorubim platyrhynchos (Valenciennes, 1840) (Siluriformes, Pimelodidae), a widespread species in South American rivers. Comparative Cytogenetics, 7(2): 103–110. |
| Cross Link |