General information |
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| Corydoras paleatus (Jenyns, 1842) | ||
| Common name | Peppered corydoras, Limpa-fundo | |
| Valid name | Corydoras paleatus (Jenyns, 1842) | |
| Synonyms |
- |
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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; Callichthyidae. |
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| Geographical distribution | Brazil; Argentina; Uruguay |
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| Occurrence | Native: Brazil, Argentina, Uruguay |
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| Importance | Aquarium |
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| Remarks | ||
Karyological information |
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| Geographical area of study | Upper Tibagi river basin (Lagoa Dourada, Ponta Grossa, State of Parana, Brazil) | |
| Source of chromosomes | ||
| Number of specimens with sex | 12 males and 8 females |
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| Diploid chromosome number | 44 |
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| Karyotype formula | 18M+ 26SM |
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| Fundamental arm number | 88 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| Chromosome staining/banding/FISH | The constitutive heterochromatin was distributed in large heterochromatic blocks in the pericentromeric region in homologous chromosomes. The silver-stained nucleolar organizer regions (Ag-NORs) were evident in a single metacentric pair in a terminal position of the long arm and confirmed by in situ hybridization with 18S rDNA probes. Additionally, a small submetacentric chromosome was marked with 18S rDNA signal on the long arm. |
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| Reference(s) |
Artoni RF, Terêncio ML, Vicari MR, Matiello MCA, Cestari MM and Bertollo LAC (2006). Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil. Brazilian Journal of Biology 66(1b): 29-41. |
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