| General information |
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Hoplerythrinus unitaeniatus (Spix & Agassiz, 1829) |
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| Common name | Aimara, TraÃra pixuna |
| Synonyms |
Erythrinus unitaeniatus Spix & Agassiz, 1829 Erythrinus salvus Agassiz, 1829 Erythrinus vittatus Valenciennes, 1847 Erythrinus balteatus Gunther, 1864 Pseuderythrinus rosapinnis Hoedeman, 1950 |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Saltwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Erythrinidae. |
| Geographical distribution |
Brazil; Argentina; Peru; Venezuela; Ecuador; Uruguay; Guyana; Suriname; French Guiana; Panama; Trinidad and Tobago |
| Occurrence |
native: Brazil; native: Argentina; native: Peru; native: Venezuela; native: Ecuador; native: Uruguay; native: Guyana; native: Suriname; native: French Guiana; native: Panama; native: Trinidad and Tobago |
| Importance |
Food |
| Karyological information |
| Record 1 |
| Geographical area of study |
Parana - Plata river basin, Argentina |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
Not reported |
| Diploid chromosome number |
48 |
| Karyotype formula |
Not reported |
| Fundamental arm number |
Not reported |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
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| Reference |
Fenocchio AS, Pastori MC, Roncati HA, Filho OM, Bertollo LAC (2003). A Cytogenetic Survey of the Fish Fauna from Argentina. Caryologia, 56(2): 197-204. |
| Record 2 |
| Geographical area of study |
Venezuela. |
| Source of chromosomes |
Kidney tissue. |
| Number of specimens with sex |
|
| Diploid chromosome number |
48 |
| Karyotype formula |
32m+16sm |
| Fundamental arm number |
96 |
| Chromosome length |
|
| Sex chromosome |
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| Chromosome staining/banding/FISH |
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| Reference |
Nirchio M, Rossi AR, Foresti F, Oliveira C (2014). Chromosome evolution in fishes: a new challenging proposal from Neotropical species. Neotropical Ichthyology, 12(4): 761-770. |
| Record 3 |
| Geographical area of study |
Mogi-Guaçú river (Guatapará, São Paulo state), Paraná river (Bataguassú, Mato Grosso do Sul state) and Prata river (tributary of Paracatu river, Minas Gerais state-São Francisco basin), Brazil. |
| Source of chromosomes |
- |
| Number of specimens with sex |
45 (17 male, 28 female). |
| Diploid chromosome number |
48 |
| Karyotype formula |
44 m/sm+4st & 44m/sm+ 4st+4a. |
| Fundamental arm number |
96 & 100. |
| Chromosome length |
- |
| Sex chromosome |
No chromosomal differentiation among sexes. |
| Chromosome staining/banding/FISH |
Multiple Ag-NORs, ranged from 2 to 6 chromosomes, observed on two m/sm and one st + one acrocentric pairs at interstitial region. Signals of 18S rDNA probe detected on 4-6 chromosomes. 5S rDNA sites located on pericentromeric regions of m/sm chromosomes with numerical variations ranged from 3-4 chromosomes. |
| Reference |
Diniz D, Bertollo LAC (2003). Karyotypic studies on Hoplerythrinus unitaeniatus (Pisces, Erythrinidae) populations. A biodiversity analysis. Caryologia, 56(3): 303-313. |
| Cross Link |