General information |
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| Astyanax eigenmanniorum (Cope, 1894) | ||
| Common name | Lambari | |
| Synonyms |
Tetragonopterus eigenmanniorum Cope, 1894 |
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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; Uruguay |
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| Occurrence | Native: Brazil, Argentina, Uruguay |
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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 | Aquariophiles, Brazil | |
| Source of chromosomes | Not reported |
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| Number of specimens with sex | 03 ( 01 male;02 females) |
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| Diploid chromosome number | 50 |
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| Karyotype formula | 8m+22sm +12st +8a |
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| Fundamental arm number | 92 |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| Chromosome staining/banding/FISH | Ag-NORs in the terminal regions of the short arms of pair 24 and on the long arm of one homolog of pair 6; GC-rich regions were detected in six chromosomes ;18S rDNA sites occurred on the short arms of pairs 1, 14, and 24, and on the long arms of pairs 5 and 6, always in the terminal region ; 5S rDNA sites were located near the centromeres of pairs 2 and 22 |
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| Reference(s) |
Piscor D,Alves AL, Parise-Maltempi PP (2015).Chromosomal Microstructure Diversity in Three Astyanax (Characiformes, Characidae) Species: Comparative Analysis of the Chromosomal Locations of the 18S and 5S rDNAs.Zebrafish, 12(1):81-90. |
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