General information |
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| Geophagus brasiliensis (Quoy & Gaimard, 1824) | ||
| Common name | Pearl cichlid | |
| Synonyms |
Crenicichla johanna strigata Gunther, 1862 Chromis brasiliensis Quoy & Gaimard, 1824 Chromys unimaculata Castelnau, 1855 Acara gymnopoma Gunther, 1862 Geophagus brasiliensis Kner, 1865 Acara minuta Hensel, 1870 Geophagus tuberosus Gosse, 1976 |
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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; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Perciformes; Cichlidae. |
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| Geographical distribution | Taiwan; Brazil; Uruguay |
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| Occurrence | Introduced: Taiwan Native: Brazil, Uruguay |
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| Importance | Food/ornamental |
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| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Feijão and Pântano stream, São Carlos, São Paulo state, Brazil | |
| Source of chromosomes | Anterior kidney |
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| Number of specimens with sex | 18 (7 males and 11 females) |
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| Diploid chromosome number | 48 |
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| Karyotype formula | 6sm+42st/a |
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| Fundamental arm number | 54 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| Chromosome staining/banding/FISH | C-positive bands located in centromeric/pericentromeric regions. The Ag-NORs and 18S rDNA sites were located in the telomeric region of the short arm of st/a pair 6. 5S rDNA sites were located in the interstitial region of the long arm of st/a pair |
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| Reference(s) |
Neto MF, de Oliveira C, Foresti F, Nogaroto V, de Almeida MC, Artoni RF, Vicari MR, Moreira-Filho O, (2010). Comparative cytogenetic study among three fish species: an analysis from a water divide region. Publication UEPG Ciencias Biologicas E Da Saúde, 16 (1): 19-28. |
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