| General information |
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Hypostomus iheringii (Regan, 1908) (Regan, 1908) |
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| Valid name |
Hypostomus iheringii (Regan, 1908) |
| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
- |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Loricariidae. |
| Geographical distribution |
- |
| Occurrence |
- |
| Remarks |
|
| Karyological information |
| Geographical area of study |
Córrego da Lapa, a tributary of the Passa-Cinco River in Ipeúna, São Paulo, Brazil. |
| Source of chromosomes |
Kidney |
| Number of specimens with sex |
9 (5 males and 4 females) |
| Diploid chromosome number |
80 |
| Karyotype formula |
8m + 16sm + 28st + 28a |
| Fundamental arm number |
132 |
| Chromosome length |
Not reported |
| Sex chromosome |
Not reported |
| Chromosome staining/banding/FISH |
C banding revealed a small section of heterochromatin, located in the terminal portions of some of the chromosomes. Silver nitrate staining and FISH with the 18S rDNA probe revealed the presence of multiple nucleolus organizer regions (NORs) located on two pairs of subtelocentric chromosomes (pairs 13 and 20) and on one pair of acrocentric chromosome (chromosome 34). The 5S rDNA sites were located in the interstitial portion of the short arm of a metacentric chromosome. |
| Reference |
Traldi JB, Vicari MR, Blanco DR, de Fátima Martinez J, Artoni RF, Moreira-Filho O (2012). First karyotype description of Hypostomus iheringii (Regan, 1908): a case of heterochromatic polymorphism. Comparative Cytogenetics 6(2): 115–125. |
| Cross Link |