General information |
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| Astyanax bimaculatus (Linnaeus, 1758) | ||
| Common name | Twospot astyanax, Machadinha | |
| 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; Characiformes; Characidae. |
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| Geographical distribution | Brazil; Argentina; Colombia; Peru; Venezuela; Ecuador; Uruguay; Guyana; Suriname; French Guiana; Panama; Trinidad and Tobago |
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| Occurrence | Native: Brazil, Argentina, Colombia, Peru, Venezuela, Ecuador, Guyana, Suriname, French Guiana, Panama, Trinidad and Tobago Questionable: Uruguay |
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| Importance | ||
| Remarks | - |
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Karyological information |
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| Geographical area of study | Caeté River estuary in Braganca municipality, Pará, Brazil. | |
| Source of chromosomes | Fibroblast culture. |
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| Number of specimens with sex | 3 (2 male, 1 female) |
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| Diploid chromosome number | 50 |
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| Karyotype formula | 6m+28sm+8st+8t |
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| Fundamental arm number | 92 |
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| Chromosome length | - |
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| Sex chromosome | - |
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| Chromosome staining/banding/FISH | - |
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| Reference(s) |
de Sousa RPC, Furo IO, Silva-Oliveira GC, Sousa-Felix RC, Bessa-Brito CD, Mello RC, Sampaio I, Artoni RF, Oliveira EHC, Vallinoto M. (2024). Comparative cytogenetics of microsatellite distribution in two tetra fishes Astyanax bimaculatus (Linnaeus, 1758) and Psalidodon scabripinnis (Jenyns, 1842). PeerJ, 12: e16924 (1-15). |
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