General information |
Brycon amazonicus (Spix & Agassiz, 1829) |
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Common name | Jatuarana |
Synonyms |
Chalceus amazonicus Spix & Agassiz, 1829 Chalceus carpophaga Valenciennes, 1850 Brycon carpophagus (Valenciennes, 1850) Brycon longiceps Steindachner, 1879 Brycon siebenthalae Eigenmann, 1912 Brycon pellegrini Holly, 1929 |
IUCN Red List status (2014) |
Least Concern (LC) |
Habitat |
Freshwater |
Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Bryconinae; Bryconidae. |
Geographical distribution |
Brazil; Colombia; Venezuela; Guyana; Trinidad and Tobago |
Occurrence |
native: Brazil; native: Colombia; native: Venezuela; native: Guyana; misidentification: Trinidad and Tobago |
Importance |
Food |
Karyological information |
Record 1 |
Geographical area of study |
Laguna de Castilleros, Caicara del Orinoco, Estado Bolivar, Venezuela |
Source of chromosomes |
Not reported |
Number of specimens with sex |
10 (05 males; 05 females) |
Diploid chromosome number |
50 |
Karyotype formula |
22m+14sm+14st |
Fundamental arm number |
100 |
Chromosome length |
Not reported |
Sex chromosome |
Not reported |
Chromosome staining/banding/FISH |
C-banding revealed heterochromatin distribution in only seven chromosome pairs; AgNO3 staining revealed signals in the terminal region of long arms of the second pair of subtelocentric chromosomes;FISH with 18S rDNA probes confirmed fluorescent signals located in the terminal region of the long arms of pair 13 |
Reference |
Mariguela TC, Nirchio M, Ron E, Gaviria JI, Foresti F, Oliveira C (2010).Cytogenetic characterization of Brycon amazonicus (Spixet Agassiz, 1829) (Teleostei: Characidae) from Caicara del Orinoco, Venezuela.Comparative Cytogenetics, 4(2):185-193. |
Record 2 |
Geographical area of study |
Venezuela. |
Source of chromosomes |
Kidney tissue. |
Number of specimens with sex |
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Diploid chromosome number |
50 |
Karyotype formula |
22m+14sm+14st |
Fundamental arm number |
100 |
Chromosome length |
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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. |
Cross Link |