General information |
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| Hypostomus ancistroides (Ihering, 1911) | ||
| Common name | Cascudo bugio | |
| Synonyms |
Ophiocephalus studeri Volz, 1903 |
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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 |
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| Occurrence | Native: Brazil |
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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 Tibagi river basin Ponta Grossa, state of Parana, Brazil | |
| Source of chromosomes | Anterior kidney |
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| Number of specimens with sex | 12 (07 males; 05 females) |
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| Diploid chromosome number | 66 |
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| Karyotype formula | 12m+16sm+10st +28a |
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| Fundamental arm number | 104 |
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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 two large heterochromatic blocks corresponding to short arm of one pair of submetacentric chromosomes and slight labeling in one pair of acrocentric chromosomes. Silver impregnation revealed 4-6 Ag-NORs, all in terminal positions of the chromosome arms with intra-individual variation. These same regions were revealed by double staining with CMA3/DAPI as rich in GC bases and confirmed by FISH with the 18S probe. |
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| Reference(s) |
Artoni RF, Bertollo LAC (1996). Cytogenetic studies on Hypostominae (Pisces, Siluriformes, Loricariidae). Considerations on karyotype evolution in the genus Hypostomus., Caryologia: International Journal of Cytology, Cytosystematics and Cytogenetics, 49:1, 81-90. |
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