General information |
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| Astyanax scabripinnis L. Jenyns, 1842 | ||
| Common name | Piaba | |
| Synonyms |
Tetragonopterus scabripinnis Jenyns, 1842 Astyanax scabripinnis scabripinnis (Jenyns, 1842) |
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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 |
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| Occurrence | Native: Brazil, Argentina |
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| Importance | ||
| Remarks | ||
Karyological information |
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| Geographical area of study | Canta Gala brook, Itirapina SaoPaulo State, Brazil | |
| Source of chromosomes | Short term culture of kidney, gill and intestine. |
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| Number of specimens with sex | 38 males annd 43 female |
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| Diploid chromosome number | 50 |
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| Karyotype formula | 4m+26sm+4st+16t |
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| Fundamental arm number | ||
| Chromosome length | ||
| Sex chromosome | ||
| Chromosome staining/banding/FISH | A close relationship was observed between large telomeric heterochromatic segments and GC-specific fluorochrome bands; FISH analysis indicates that rDNA clusters are not always located on CMA+ (or MM+) bands |
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| Reference(s) |
Souza IL, Galian J, De La Rua P, Bertollo LAC, Moreira-Filho O (2001). Non-random Distribution of the GC-rich heterochromatin and nucleolar rDNA sites on Astyanax scabripinnis chromosomes. Cytologia, 66: 85-91.
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