General information |
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| Hypostomus derbyi (Haseman, 1911) | ||
| Common name | Cascudo | |
| Synonyms |
Hypostomus spiniger (Hensel, 1870) |
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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; Loricariidae. |
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| Geographical distribution | Brazil; Argentina |
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| Occurrence | Native: Brazil, Argentina |
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| Importance | Food |
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| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Upper Iguacu river basin, Curitiba city, Parana, Brazil. | |
| Source of chromosomes | Anterior kidney |
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| Number of specimens with sex | 05 (03 males; 02 females) |
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| Diploid chromosome number | 66 |
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| Karyotype formula | 6m+10sm+20st+30a |
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| Fundamental arm number | 82 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not evident |
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| Chromosome staining/banding/FISH | C-banding revealed large heterochromatic blocks on some chromosome arms. Ag-NORs were detected on the short arm in up to two chromosome pairs and confirmed by FISH with the 18SrDNA probe |
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| Reference(s) |
Maurutto FAM, Manvailer LFS, Sczepanski TS, Cestari MM, Artoni RF (2012). Cytogenetic characterization of three allopatric species of Hypostomus Lacepede (1803) (Teleostei, Loricariidae), Caryologia: International Journal of Cytology, Cytosystematics and Cytogenetics, 65:4, 340-346. |
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