General information |
||
| Astyanax altiparanae Garutti & Britski, 2000 | ||
| Synonyms |
|
|
| IUCN Red List status (2014) | Not Reported |
|
| Habitat | Freshwater |
|
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characidae. |
|
| Geographical distribution | Brazil |
|
| Occurrence | Native: Brazil |
|
| Importance | Food |
|
| Remarks | Nil |
|
Karyological information |
||
| Geographical area of study | Ribeirao Claro river in Sao Paulo state (SP), Brazil | |
| Source of chromosomes | Not reported |
|
| Number of specimens with sex | 05 (02 males; 03 males) |
|
| Diploid chromosome number | 50 |
|
| Karyotype formula | 8m+28sm+8st+6a |
|
| Fundamental arm number | 94 |
|
| Chromosome length | Not reported |
|
| Sex chromosome | Not reported |
|
| Chromosome staining/banding/FISH | Three chromosomes contained Ag-NORs:Blocks of heterochromatin in the pericentromeric regions of seven pairs; GC-rich regions were also present in the same places as the Ag-NORs ;18S rDNA probe labeled terminal regions of pair 19; 5S rDNA probe labeled the pericentromeric region of pair 5 |
|
| 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. |
|