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 Parana basin, Piracicaba and Mogi Guau rivers, State of Sao Paulo, Brazil | |
| Source of chromosomes | Kidney |
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| Number of specimens with sex | 09 ( 05 males; 04 females) |
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| Diploid chromosome number | 68 |
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| Karyotype formula | 16m+ 18Sm+ 34st/a |
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| Fundamental arm number | Not reported |
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| Chromosome length | Not reported |
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| Sex chromosome | Not detected |
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| Chromosome staining/banding/FISH | Heterochromatin detected as a large segment on the second metacentric pair and at centromeric region on a few chromosomes. AgNOR located at interstitial region on short arms of m pair 2. The 18S and 5S rDNA sites located syntenic and adjacent. The 5SrDNA is proximal on short arms and the 18S rDNA is adjacent and distal to this site on the m pair 2. |
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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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