| General information |
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Atherinella brasiliensis Quoy & Gaimard (1825) |
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| Common name | Brazilian silversides, Manjuba |
| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Saltwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata; Ovalentaria; Atherinomorphae; Atheriniformes; Atherinopsidae. |
| Geographical distribution |
Brazil; Colombia; Venezuela; Uruguay; Guyana; Suriname; French Guiana; Aruba; Curaçao Island; Trinidad and Tobago |
| Occurrence |
native: Brazil; native: Colombia; native: Venezuela; native: Uruguay; native: Guyana; native: Suriname; native: French Guiana; native: Aruba; native: Curaçao Island; native: Trinidad and Tobago |
| Remarks |
Five different cytotypes detected in Parana State population. One additional cytotype detected in Santa Catarina State population. |
| Karyological information |
| Record 1 |
| Geographical area of study |
Bara de Paranagua (Parana State) and Lagoa da Conceicao (Santa Catarina State), Brazil. |
| Source of chromosomes |
Short term kidney cell culture. |
| Number of specimens with sex |
67 (23 male, 44 female) |
| Diploid chromosome number |
48 |
| Karyotype formula |
4m+10sm+14st+20a |
| Fundamental arm number |
76 |
| Chromosome length |
- |
| Sex chromosome |
No sex related chromosome heteromorphisms detected. |
| Chromosome staining/banding/FISH |
C- bands distributed in centromeric and telomeric regions of several chromosomes with strong bands on short arms of first metacentric pair and on two acrocentric elements corresponding to 19th pair. Silver, CMA3 staining and 18S FISH signals present on short arm of 19th acrocentric pair, which frequently show size heteromorphism. |
| Reference |
Cortinhas MC Da Silva, Cestari MM, Swarca AC, Fenocchio AS (2003). First chromosome data about the silverside Atherinella brasiliensis (Atheriniformes, Pisces) from the South Coast of Brazil. Conventional, C-NOR and CMA3 bandings and FISH studies. Caryologia, 56(2): 191-195. |
| Record 2 |
| Geographical area of study |
Laranjeiras Bay, State of Parana, Brazil |
| Source of chromosomes |
Anterior kidney |
| Number of specimens with sex |
22 (13 males and 9 females) |
| Diploid chromosome number |
48 |
| Karyotype formula |
4m+ 14sm+18st+12a |
| Fundamental arm number |
84 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
Centromeric C- bands were observed on all the chromosomes. NORs/18S rDNA probe signals were located at terminal positions of a submetacentric pair. The 5S rDNA clusters were located in terminal positions on two chromosomal pairs. |
| Reference |
Sczepanski TS, Noleto RB, Kantek DLZ, Cortinhas MCS, Cestar MM (2007). Classical and molecular cytogenetics of Atherinella brasiliensis (Teleostei, Atheriniformes) from South coast of Brazil. Journal of Fish Biology, 71:453-460 |
| Cross Link |