| General information |
|
Liposarcus multiradiatus (Hancock, 1828) |
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| |
|
| Common name | Orinoco sailfin catfish |
| Valid name |
Pterygoplichthys multiradiatus (Hancock, 1828) |
| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Loricariidae. |
| Geographical distribution |
India; Taiwan; USA; Argentina; Peru; Venezuela; Guyana; Hawaii; Puerto Rico |
| Occurrence |
introduced: India; introduced: Taiwan; introduced: USA; questionable: Argentina; misidentification: Peru; native: Venezuela; questionable: Guyana; introduced: Hawaii; introduced: Puerto Rico |
| Importance |
- |
| Remarks |
- |
| Karyological information |
| Record 1 |
| Geographical area of study |
Venezuela. |
| Source of chromosomes |
Kidney tissue. |
| Number of specimens with sex |
|
| Diploid chromosome number |
52 |
| Karyotype formula |
22m+18sm+12st |
| Fundamental arm number |
104 |
| Chromosome length |
|
| Sex chromosome |
|
| Chromosome staining/banding/FISH |
|
| Reference |
Nirchio M, Rossi AR, Foresti F, Oliveira C (2014). Chromosome evolution in fishes: a new challenging proposal from Neotropical species. Neotropical Ichthyology, 12(4): 761-770. |
| Record 2 |
| Geographical area of study |
Orinoco river, Caicara del Orinoco, Bolivar, Venezuela. |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
6 (3 male, 3 female) |
| Diploid chromosome number |
52 |
| Karyotype formula |
22m+18sm+12st |
| Fundamental arm number |
- |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
One subterminal Ag-NORs on long arm of 10th metacentric chromosome pair. |
| Reference |
Alves AL, Oliveira C, Nirchio M, Granado A, Foresti F (2006). Karyotypic relationships among the tribes of Hypostominae (Siluriformes: Loricariidae) with description of XO sex chromosome system in a Neotropical fish species. Genetica, 128: 1-9. |
| Record 3 |
| Geographical area of study |
Orinoco River, Venezuela. |
| Source of chromosomes |
Kidney tissues. |
| Number of specimens with sex |
- |
| Diploid chromosome number |
52 |
| Karyotype formula |
22m+18sm+12st |
| Fundamental arm number |
- |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
Two signals of 18S rDNA detected in subterminal position of long arm of metacentric chromosome pair 10 (m). |
| Reference |
Alves AL, de Borba RS, Pozzobon APB, Oliveira C, Nirchio M, Granado A, Foresti F. (2012). Localization of 18S ribosomal genes in suckermouth armoured catfishes Loricariidae (Teleostei, Siluriformes) with discussion on the Ag-NOR evolution. Comp. Cytogen. 6(3): 315–321. |
| Cross Link |