General information |
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| Hypostomus strigaticeps | ||
| Common name | Cascudo pintado | |
| Synonyms |
Plecostomus strigaticeps Regan, 1908 |
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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 | ||
| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Pirapo River, Municipality of Maringa; Ivai River, Municipality of Ivatuba, Parana State, Brazil. | |
| Source of chromosomes | Anterior kidney cells. |
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| Number of specimens with sex | 14 (9 male, 5 female) |
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| Diploid chromosome number | 72 |
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| Karyotype formula | 10m+12sm+14st+36a |
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| Fundamental arm number | 108 |
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| Chromosome length | - |
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| Sex chromosome | Heteromorphic sex chromosomes not identified. |
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| Chromosome staining/banding/FISH | Ag-NOR located on terminal position of long arm of pairs chromosome 21 and 24 in both populations. C-heterochromatin located in pericentromeric region of pairs 3 and terminal position of pairs 28 for Pirapo population. C-block located in pericentromeric region of pairs 4 for Ivai population. C-blocks also found in terminal position of pairs 28 for Pirapo population and 26 for Ivai population. Large heterochromatic blocks located in terminal position in long arm of pair 24 in both populations. |
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| Reference(s) |
Balini LC, de Melo RF, Portela-Castro ALB, Zawadzki CH, Ribeiro MO, Fernandes CA, Borin-Carvalho LA. (2025). Polymorphism of 5S and 18S ribosomal DNA in a conserved karyotype of the two Hypostomus strigaticeps (Siluriformes: Loricariidae) populations from the upper Paraná River basin. Neotropical Ichthyology, 23(2): e240061. |
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