| General information |
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Synbranchus madeirae (Bloch, 1795) |
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| Common name | Atinga |
| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Synbranchiformes; Synbranchidae. |
| Geographical distribution |
Peru |
| Occurrence |
native: Peru |
| Remarks |
- |
| Karyological information |
| Geographical area of study |
Catalao Lake, Negro and Solimoes rivers’ confluence, Amazonas State, Brazil. |
| Source of chromosomes |
Renal cells. |
| Number of specimens with sex |
14 |
| Diploid chromosome number |
46 |
| Karyotype formula |
6m+2st+38a |
| Fundamental arm number |
52 |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
C-bands observed in centromeric and terminal regions of most chromosomes. Conspicuous interstitial and distal C-blocks found in pairs 1, 5, 6, 8 and 10. Ag-NOR located on long arms of pair 2, short arms of pair 6 and interstitial region of long arm of one of homologous pair 7. Four to six 18S rRNA gene sites found by FISH. 5S rDNA probe located on interstitial regions of long arms of pair 8. Telomeric probe showed no interstitial sites. |
| Reference |
Carvalho NDM, Gross MC, Schneider CH, Terencio ML, Zuanon J, Feldberg E (2012). Cytogenetics of Synbranchiformes: a comparative analysis of two Synbranchus Bloch, 1795 species from the Amazon. Genetica, 140: 149–158. |
| Cross Link |