General information |
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| Astyanax altiparanae Garutti & Britski, 2000 | ||
| 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 |
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| Occurrence | Native: Brazil |
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| Importance | Food |
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| Remarks | Nil |
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Karyological information |
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| Geographical area of study | Água Boa and Santa Maria streams, Iguatemi River, Mato Grosso do Sul State, Brazil. | |
| Source of chromosomes | Anterior kidney cells. |
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| Number of specimens with sex | 32 (12 male, 15 female, 5 unidentified). |
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| Diploid chromosome number | 50 |
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| Karyotype formula | 6m+24sm+10st+10a and 6m+24sm+8st+12a |
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| Fundamental arm number | 90/ 88 |
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| Chromosome length | - |
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| Sex chromosome | - |
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| Chromosome staining/banding/FISH | AgNOR sites present on 1-4 chromosomes. Both populations showed weak heterochromatic blocks in telomeric and centromeric regions in few chromosomes and evident interstitial markings in several chromosomes. A NOR on short arm in the chromosome of pair 20 showed a positive C-band with size heteromorphism between homologous chromosomes. |
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| Reference(s) |
Fernandes CA, Da Rocha RH, Bailly D, Guterres Zda R, Alves DS, Martins-Santos IC (2014). Cytogenetic and morphometric analysis in the species Astyanax altiparanae Garutti & Britski, 2000 (Teleostei, Characidae) from the Iguatemi River Basin, Brazil. Folia Biol (Krakow), 62(3): 193-201. |
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