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 | Lapa Stream, Ipeúna city, São Paulo, Brazil. | |
| Source of chromosomes | Anterior kidney. |
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| Number of specimens with sex | 21 (11 female, 10 male). |
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| Diploid chromosome number | 68 |
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| Karyotype formula | 14m+16sm+22st+16a |
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| Fundamental arm number | 120 |
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| Chromosome length | - |
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| Sex chromosome | - |
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| Chromosome staining/banding/FISH | Multiple Ag-NOR present in terminal regions of short arms of chromosome pairs 8, 13 and 15. C-bands present small heterochromatins, distributed over terminal and centromeric re¬gions of several chromosomes. Overlapping observed between heterochromatic sites and NOR in chromosome pair 15. 18S rDNA signal present on pair 15 that confirmed the results of AgNOR. 5S rDNA signals present on three pairs (pair 2 with interstitial marking on p arm, pairs 8, 13 having a syntenic condition with 18S rDNA). |
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| Reference(s) |
Traldi JB, Blanco DR, Vicari MR, Martinez JF, Lui RL, Barros AV, Artoni RF, Moreira-Filho O (2013). Chromosomal diversity in Hypostomus (Siluriformes, Loricariidae) with emphasis on physical mapping of 18S and 5S rDNA sites. Genetics and Molecular Research, 12 (1): 463-471. |
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